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Mathematics
Ratio and Proportion
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NTPC Graduate Tier 1 2025 Shift-2 📅 05 Jun, 2025

If 3.5 : 17.4 :: 14 : x, find the value of x.

A
65.9
B
72.9
C
69.6
D
67.9
Result Summary
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NTPC Graduate Tier 1
2025 • 05 Jun, 2025 • Shift-2
If 3.5 : 17.4 :: 14 : x, find the value of x.
Correct Answer
69.6
Proportional Logic: In any standard proportion represented as a:b :: c:d, the fundamental rule states that the product of the extremes equals the product of the......
Ref/Book : NTPC Graduate Tier 1 2025
Ref. Subject Mathematics
Chapter -
Ref. Topic Ratio and Proportion
Pg. No -
💡 Analysis & Explanation
Proportional Logic ▼
In any standard proportion represented as a:b :: c:d, the fundamental rule states that the product of the extremes equals the product of the means (a * d = b * c).
Equation Structuring ▼
Mapping our specific values into the formula yields: 3.5 * x = 17.4 * 14.
Mathematical Simplification ▼
Rearranging to isolate x, we divide the right side product by 3.5. So, x = (17.4 * 14) / 3.5.
Final Calculation ▼
Recognizing that 14 divided by 3.5 equals 4, the expression simplifies to 17.4 * 4, which equates to 69.6.
Conclusion ▼
The final correct mathematical value for x is 69.6.
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