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Finding the Third Proportional to 1,338.75 and 2,882.81

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Solution

The third proportional to 1,338.75 and 2,882.81 is: 6,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.75 : 2,882.81 = 2,882.81 : x
  2. Step 2: Convert to fraction form
    1,338.75/2,882.81 = 2,882.81/x
  3. Step 3: Cross multiply
    1,338.75x = 2,882.81 × 2,882.81
  4. Step 4: Simplify right side
    1,338.75x = 8,310,607.91
  5. Step 5: Solve for x
    x = 8,310,607.91/1,338.75
  6. Step 6: Final answer
    x = 6,207.74

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.