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Finding the Third Proportional to 3,921.75 and 9,253.13

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Solution

The third proportional to 3,921.75 and 9,253.13 is: 21,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.75 : 9,253.13 = 9,253.13 : x
  2. Step 2: Convert to fraction form
    3,921.75/9,253.13 = 9,253.13/x
  3. Step 3: Cross multiply
    3,921.75x = 9,253.13 × 9,253.13
  4. Step 4: Simplify right side
    3,921.75x = 85,620,322.27
  5. Step 5: Solve for x
    x = 85,620,322.27/3,921.75
  6. Step 6: Final answer
    x = 21,832.17

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.