The fourth proportion of 1.4, 8.4, and 4.2 is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 25.2.
Calculations:
Let the fourth proportion be D.
According to the question;
⇒ 1.4/8.4 = 4.2/D
⇒ D = 4.2 × 6
⇒ D = 25.2