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Finding the Third Proportional to 911 and 2,265.50

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Solution

The third proportional to 911 and 2,265.50 is: 5,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    911 : 2,265.50 = 2,265.50 : x
  2. Step 2: Convert to fraction form
    911/2,265.50 = 2,265.50/x
  3. Step 3: Cross multiply
    911x = 2,265.50 × 2,265.50
  4. Step 4: Simplify right side
    911x = 5,132,490.25
  5. Step 5: Solve for x
    x = 5,132,490.25/911
  6. Step 6: Final answer
    x = 5,633.91

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Why These Related Problems?

These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.