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Finding the Third Proportional to 3,979.50 and 6,107.25

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Solution

The third proportional to 3,979.50 and 6,107.25 is: 9,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.50 : 6,107.25 = 6,107.25 : x
  2. Step 2: Convert to fraction form
    3,979.50/6,107.25 = 6,107.25/x
  3. Step 3: Cross multiply
    3,979.50x = 6,107.25 × 6,107.25
  4. Step 4: Simplify right side
    3,979.50x = 37,298,502.56
  5. Step 5: Solve for x
    x = 37,298,502.56/3,979.50
  6. Step 6: Final answer
    x = 9,372.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.