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Finding the Third Proportional to 748.69 and 1,149.19

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Solution

The third proportional to 748.69 and 1,149.19 is: 1,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    748.69 : 1,149.19 = 1,149.19 : x
  2. Step 2: Convert to fraction form
    748.69/1,149.19 = 1,149.19/x
  3. Step 3: Cross multiply
    748.69x = 1,149.19 × 1,149.19
  4. Step 4: Simplify right side
    748.69x = 1,320,631.91
  5. Step 5: Solve for x
    x = 1,320,631.91/748.69
  6. Step 6: Final answer
    x = 1,763.93

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.