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Finding the Third Proportional to 3,977 and 6,149

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Solution

The third proportional to 3,977 and 6,149 is: 9,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977 : 6,149 = 6,149 : x
  2. Step 2: Convert to fraction form
    3,977/6,149 = 6,149/x
  3. Step 3: Cross multiply
    3,977x = 6,149 × 6,149
  4. Step 4: Simplify right side
    3,977x = 37,810,201
  5. Step 5: Solve for x
    x = 37,810,201/3,977
  6. Step 6: Final answer
    x = 9,507.22

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.