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Finding the Third Proportional to 3,181.50 and 4,117.25

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Solution

The third proportional to 3,181.50 and 4,117.25 is: 5,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.50 : 4,117.25 = 4,117.25 : x
  2. Step 2: Convert to fraction form
    3,181.50/4,117.25 = 4,117.25/x
  3. Step 3: Cross multiply
    3,181.50x = 4,117.25 × 4,117.25
  4. Step 4: Simplify right side
    3,181.50x = 16,951,747.56
  5. Step 5: Solve for x
    x = 16,951,747.56/3,181.50
  6. Step 6: Final answer
    x = 5,328.22

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.