Which preposition to use with proportionable
Proportionable to his capacity was his progress in literature: at thirteen, having made himself master of school-learning, he turned his studies to philosophy and the mathematicks; and entered upon logick, under Capella, of Cremona; who, though a celebrated master of that science, confessed himself, in a very little time, unable to give his pupil further instructions.
His pipe was many a mile in length, His lungs proportionable in strength; And his rich moccasins,with the pair, The seven-league boots would not compare.
In short, my mind being strongly fixed upon my design of going over with him to the Continent, I very plainly told him that we would both go and make a boat full as big, and more proportionable than that, wherein he might safely return to his own nation.