Just curiosity, you said you are using Linux Enterprise V3. I'm assuming that means RedHat, correct? Since I think Dell will install that on some servers. (could be wrong)
/dev/sda1 1 5 40131 de Dell Utility
should be your Dell hardware diagnostics utility drive and might be used to recover the system. (I'm assuming it's the same as on my Dell laptop.)
/dev/sda4 358 17834 140384002+ f Win95 Ext'd (LBA)
is your extended partition which actually contains partitions 5 through 9 (since a hard drive can only have 4 primary partitions, the 4th is a container for the logical partitions). With rough math, it looks like 5-9 already take up all available space left in the extended area.
So, you can't really cut out more space from 4 (since it doesn't really take up space on it's own, it is a container for the rest) and add it to another partition. If you specifically need space for things that have to exist in folder1... What you can do...
Create a symbolic link in folder1 which points to a directory you create on another partition for this purpose, where you have more space.
Alternative: there are disk partitioning tools that are supposed to be able to resize partitions. But, I don't have a lot experience with that.