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Finding the Third Proportional to 1,144.76 and 1,512.11

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Solution

The third proportional to 1,144.76 and 1,512.11 is: 1,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.76 : 1,512.11 = 1,512.11 : x
  2. Step 2: Convert to fraction form
    1,144.76/1,512.11 = 1,512.11/x
  3. Step 3: Cross multiply
    1,144.76x = 1,512.11 × 1,512.11
  4. Step 4: Simplify right side
    1,144.76x = 2,286,462.95
  5. Step 5: Solve for x
    x = 2,286,462.95/1,144.76
  6. Step 6: Final answer
    x = 1,997.33

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.