Finding the Third Proportional to 791 and 1,818.50
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Solution
The third proportional to 791 and 1,818.50 is: 4,180.71
Step by Step Solution
- Step 1: Write the proportion equation
791 : 1,818.50 = 1,818.50 : x - Step 2: Convert to fraction form
791/1,818.50 = 1,818.50/x - Step 3: Cross multiply
791x = 1,818.50 × 1,818.50 - Step 4: Simplify right side
791x = 3,306,942.25 - Step 5: Solve for x
x = 3,306,942.25/791 - Step 6: Final answer
x = 4,180.71
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Why These Related Problems?
These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.