Question

Find the fourth proportional to 1.5, 2.5, 4.5.​

Answer 1

Answer:

Let the fourth proportional to 1.5, 4.5 and 3.5 be x.

⟹1.5 : 4.5 = 3.5 : x

⟹ 1.5 × x = 3.5 × 4.5

⟹ x = 10.5