Hi

Insert 3 numbers between 3 and 48 such that the 5 numbers form a GP.

I only know that the common ratio is 2 by guess and check (Worried) How do I do this properly?

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- Jan 29th 2010, 08:10 PMxwrathbringerxGeometric Progression.
Hi

Insert 3 numbers between 3 and 48 such that the 5 numbers form a GP.

I only know that the common ratio is 2 by guess and check (Worried) How do I do this properly? - Jan 29th 2010, 08:47 PMSudharaka
Dear xwrathbringerx,

Suppose the geometrical progression is

Then --------(1)

Also, ----------(2)

By (1) and (2),

Since,

Hope this helps. - Jan 29th 2010, 09:55 PMSoroban
Hello, xwrathbringerx!

Another approach . . .

Quote:

Insert 3 numbers between 3 and 48 such that the 5 numbers form a GP.

. .

But we know that the term is 48.

Hence, we have: .

There arepossible GP's: .*two*