Select row and column of a table.

Select row and column of a table.

Hi,
in a loop I have to select the 4th td of a table.
I've used this:
var id = $('#miaTabella tr:eq(1) td:eq(4)').html() it works,
but I use always the 2nd row.
How  can I change tr:eq(1) with the index of the loop?
Some thing like this:

for(i=0;i<10;i++) var id = $('#miaTabella tr:eq(i) td:eq(4)').html()

Thanks in advance

Tegatti