Question

find the third proportional of the following 1.4 and 4.2​

Answer 1

Answer:

Answer is x=0.47

Step-by-step explanation:

Let the third proportional be x

Then 4.2 and 1.4 are in continued proportion

⇒ 4.2÷1.4 = 1.4÷x

crossed multiply

⇒4.2x = 1.4×1.4

⇒4.2x = 1.96

⇒x = 1.96 ÷ 4.2

⇒x = 0.47