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Finding the Third Proportional to 3,918.38 and 5,322.38

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Solution

The third proportional to 3,918.38 and 5,322.38 is: 7,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.38 : 5,322.38 = 5,322.38 : x
  2. Step 2: Convert to fraction form
    3,918.38/5,322.38 = 5,322.38/x
  3. Step 3: Cross multiply
    3,918.38x = 5,322.38 × 5,322.38
  4. Step 4: Simplify right side
    3,918.38x = 28,327,675.64
  5. Step 5: Solve for x
    x = 28,327,675.64/3,918.38
  6. Step 6: Final answer
    x = 7,229.44

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.