List of 4:3 Monitor Resolutions
Resolution - Aspect ratio
640x480-----4:3
800x600-----4:3
1024x768-----4:3
1152x864-----4:3
1280x960-----4:3 
1400x1050-----4:3
1600x1200-----4:3
2048x1536-----4:3
3200x2400-----4:3
4000x3000-----4:3
6400x4800-----4:3 

List of 16:9 Widescreen Resolutions
Resolution - Aspect ratio
852x480-----16:9
1280x720-----16:9
1365x768-----16:9
1600x900-----16:9
1920x1080-----16:9 

List of 16:10 Widescreen Resolutions
Resolution - Aspect ratio
1440x900-----16:10
1680x1050-----16:10
1920x1200-----16:10
2560x1600-----16:10
3840x2400-----16:10
7680x4800-----16:10