Question

find the fourth proportional to: 0.6,1.5,3 answer will be 7.5 can anyone explain me step by step please. ​

Answer 1

Answer:

When four quantities a,b,c,d are proportionals then d is the fourth proportional and ‘ the product of the extremes = Product of the means ‘

Which can be expressed as ,

A*D = B*C

Using the above formula ,

0.6 : 1.5 :: 3 : d (let the fourth proportional be d)

0.6 * d = 1.5 * 3

d = 7.5 .

I hope this helps.