CA Foundation P3 · Chapter 1 · Question 3 of 9
The fourth proportional to 4, 10 and 14 is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 35
Explanation
If x is the fourth proportional, then 4 : 10 = 14 : x, so 4x = 10 x 14 = 140 and x = 35. The value 5.6 comes from wrongly computing 4 x 14 / 10.