RRB NTPC · Question 44
Find the fourth proportional to 2, 4 and 8
Show answer & explanation
Answer: (C) 16
Explanation
The fourth proportional x satisfies 2 : 4 = 8 : x, so x = 4 × 8 / 2 = 16.
Railways PYQCBT 2 2017
RRB NTPC · Question 44
Answer: (C) 16
The fourth proportional x satisfies 2 : 4 = 8 : x, so x = 4 × 8 / 2 = 16.