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Finding the Third Proportional to 3,993.75 and 5,257.13

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Solution

The third proportional to 3,993.75 and 5,257.13 is: 6,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.75 : 5,257.13 = 5,257.13 : x
  2. Step 2: Convert to fraction form
    3,993.75/5,257.13 = 5,257.13/x
  3. Step 3: Cross multiply
    3,993.75x = 5,257.13 × 5,257.13
  4. Step 4: Simplify right side
    3,993.75x = 27,637,363.27
  5. Step 5: Solve for x
    x = 27,637,363.27/3,993.75
  6. Step 6: Final answer
    x = 6,920.15

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.