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Finding the Third Proportional to 651.50 and 1,372.75

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Solution

The third proportional to 651.50 and 1,372.75 is: 2,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.50 : 1,372.75 = 1,372.75 : x
  2. Step 2: Convert to fraction form
    651.50/1,372.75 = 1,372.75/x
  3. Step 3: Cross multiply
    651.50x = 1,372.75 × 1,372.75
  4. Step 4: Simplify right side
    651.50x = 1,884,442.56
  5. Step 5: Solve for x
    x = 1,884,442.56/651.50
  6. Step 6: Final answer
    x = 2,892.47

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.