Question

what is the fourth proportional of 2,5and 6

Answer 1

Hey friend

here is your answer
as, in proportion
a : b = c : d
here,
a = 2
b = 5
c = 6
d = ? (to find)

so,
2 : 5 = 6 : d
d = ( 5 × 6 ) / 2
d = 15

so the fourth proportion = 15



glad to help you
hope it helps
thank you.

Answer 2

fourth proportional = a:b::c:x
= 2:5::6:x
=2/5=6/x
=30=2x
=x=30/2
= 15 ans.