linking data from a combo box to another sheet

Hello all, thankyou for looking at my problem, i hope someone can help im in need.

How do I link data from a combo box to another sheet? what i wish to do is explained below:
I want to be able to select an option from a combo box, and that option is linked with a table in another sheet -
eg The price for (combo box) apples (combo box) is... $1.24,
then in sheet three a table with the list from the combo box appears, and in the row of apples i want $1.24 to appear,
Does this make sense? How do i do it? please help, and thanks for your time, it is very much appreciated

Can someone please help, im in desperate need????