(a) Except as otherwise provided in subsection (c) of this section, upon motion of a party to an agreement to arbitrate or to an arbitration proceeding, the court may order consolidation of separate arbitration proceedings as to all or some of the claims if:

1. (1) There are separate agreements to arbitrate or separate arbitration proceedings between the same persons or one of them is a party to a separate agreement to arbitrate or a separate arbitration proceeding with a third person;
2. (2) The claims subject to the agreements to arbitrate arise in substantial part from the same transaction or series of related transactions;
3. (3) The existence of a common issue of law or fact creates the possibility of conflicting decisions in the separate arbitration proceedings; and
4. (4) Prejudice resulting from a failure to consolidate is not outweighed by the risk of undue delay or prejudice to the rights of or hardship to parties opposing consolidation.