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Finding the Third Proportional to 3,723 and 6,612.75

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Solution

The third proportional to 3,723 and 6,612.75 is: 11,745.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723 : 6,612.75 = 6,612.75 : x
  2. Step 2: Convert to fraction form
    3,723/6,612.75 = 6,612.75/x
  3. Step 3: Cross multiply
    3,723x = 6,612.75 × 6,612.75
  4. Step 4: Simplify right side
    3,723x = 43,728,462.56
  5. Step 5: Solve for x
    x = 43,728,462.56/3,723
  6. Step 6: Final answer
    x = 11,745.49

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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.