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Finding the Third Proportional to 1,330.50 and 3,132.75

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Solution

The third proportional to 1,330.50 and 3,132.75 is: 7,376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.50 : 3,132.75 = 3,132.75 : x
  2. Step 2: Convert to fraction form
    1,330.50/3,132.75 = 3,132.75/x
  3. Step 3: Cross multiply
    1,330.50x = 3,132.75 × 3,132.75
  4. Step 4: Simplify right side
    1,330.50x = 9,814,122.56
  5. Step 5: Solve for x
    x = 9,814,122.56/1,330.50
  6. Step 6: Final answer
    x = 7,376.27

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.