#951 · Algebra · Sequences & series

Fourth Proportional

Find the fourth proportional to $3, 5, 27$ .

~3 minAnswer checked instantlyProportion

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. II. Proportion, Examples II, No. 1

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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).