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Finding the Third Proportional to 1,108.13 and 2,557.69

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Solution

The third proportional to 1,108.13 and 2,557.69 is: 5,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.13 : 2,557.69 = 2,557.69 : x
  2. Step 2: Convert to fraction form
    1,108.13/2,557.69 = 2,557.69/x
  3. Step 3: Cross multiply
    1,108.13x = 2,557.69 × 2,557.69
  4. Step 4: Simplify right side
    1,108.13x = 6,541,765.35
  5. Step 5: Solve for x
    x = 6,541,765.35/1,108.13
  6. Step 6: Final answer
    x = 5,903.45

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.