Finding the Third Proportional to 831 and 1,375
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Solution
The third proportional to 831 and 1,375 is: 2,275.12
Step by Step Solution
- Step 1: Write the proportion equation
831 : 1,375 = 1,375 : x - Step 2: Convert to fraction form
831/1,375 = 1,375/x - Step 3: Cross multiply
831x = 1,375 × 1,375 - Step 4: Simplify right side
831x = 1,890,625 - Step 5: Solve for x
x = 1,890,625/831 - Step 6: Final answer
x = 2,275.12
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These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.