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Finding the Third Proportional to 3,984 and 7,088

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Solution

The third proportional to 3,984 and 7,088 is: 12,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984 : 7,088 = 7,088 : x
  2. Step 2: Convert to fraction form
    3,984/7,088 = 7,088/x
  3. Step 3: Cross multiply
    3,984x = 7,088 × 7,088
  4. Step 4: Simplify right side
    3,984x = 50,239,744
  5. Step 5: Solve for x
    x = 50,239,744/3,984
  6. Step 6: Final answer
    x = 12,610.38

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.