Connect 4 and 8 ohm speakers to stereo?

[GobiDoo]

Hi, I'm gonna start of to say that I am totally new to all of this.
So I'm sorry if my question seem stupid.

I bought an old radio cabinet, the radio was busted so I simply put in a tiny
amplifier I had lying around. (2 channel, stereo)
It had three speakers in it. One in middle, two on each sides.
The ones on the sides were simply bad. So I decided to keep the middle one
and toss the others out. I got these two 4-ohm speakers that fit neatly.
But the middle on is on 8 ohm. I'm not sure how to connect these.

And since the amp only has 2 channels I need to wire the three togheter somehow. Is this even possible?

I'd be very grateful for any help and opinions!

Sincerily

 

[kanewolf]

Two four ohm speakers in SERIES will have the same effective impedance as an eight ohm speaker. Put the eight ohm on one channel and the two four ohm in series on the other channel.