Finding the Third Proportional to 391 and 935
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Solution
The third proportional to 391 and 935 is: 2,235.87
Step by Step Solution
- Step 1: Write the proportion equation
391 : 935 = 935 : x - Step 2: Convert to fraction form
391/935 = 935/x - Step 3: Cross multiply
391x = 935 × 935 - Step 4: Simplify right side
391x = 874,225 - Step 5: Solve for x
x = 874,225/391 - Step 6: Final answer
x = 2,235.87
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Why These Related Problems?
These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.