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Finding the Third Proportional to 3,609 and 5,423.25

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Solution

The third proportional to 3,609 and 5,423.25 is: 8,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609 : 5,423.25 = 5,423.25 : x
  2. Step 2: Convert to fraction form
    3,609/5,423.25 = 5,423.25/x
  3. Step 3: Cross multiply
    3,609x = 5,423.25 × 5,423.25
  4. Step 4: Simplify right side
    3,609x = 29,411,640.56
  5. Step 5: Solve for x
    x = 29,411,640.56/3,609
  6. Step 6: Final answer
    x = 8,149.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.