DUBAI, Oct 26 (Reuters) - Qatar's Aamal AHCS.QA , a diversified investment firm, reported a 3.6 percent fall in third-quarter net profit on Wednesday, according to a Reuters calculations.

* Net profit of 101.2 million riyals ($27.8 million) in the three months ending Sept. 30 versus 105 million riyals a year earlier.

* Reuters calculated the result based on financial statements in lieu of a quarterly breakdown.

* Aamal's nine-month net profit of 356.8 million riyals was up from 325.9 million a year earlier, it said in a bourse statement.

($1 = 3.6411 Qatar riyals)

(Reporting by David French; editing by Jason Neely) ((davidj.french@thomsonreuters.com; +971 4 362 5864; Reuters Messaging: davidj.french.thomsonreuters.com@reuters.net))