Guitar-Related Math Assistance, Please

[patrickgm60]

I'm looking at guitaleles (basically a 6-strong ukulele.) I played one this weekend that has a 17" scale length. He told me that the fret spacing is equivalent to playing a Martin-scaled acoustic guitar with a capo on the 7th fret. That seems accurate. I liked the concept and body size, but the fingerboard is simply too cramped.

I found one online (a Cordoba Mini) that has a 20" scale. What "capo fret" does that equate to? Thanks.

Probably a "duh" question; abuse is welcome, as long as you provide the answer.

[JonWint]

If you have a guitar and a measuring device (tape or rule), measure 20" from the saddle and note which fret is closest. That will be an approximation. It's near the 4th fret.

Is this a trick question?

[patrickgm60]

Originally Posted by JonWint

If you have a guitar and a measuring device (tape or rule), measure 20" from the saddle and note which fret is closest. That will be an approximation. It's near the 4th fret.

Is this a trick question?

Jon, thank you for the answer (4th fret.) Not a trick, just too tricky for me.