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Finding the Fourth Proportional to 2,248.88, 3,373.50 and 688.73

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Solution

The fourth proportional to 2,248.88, 3,373.50 and 688.73 is: 1,033.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.88 : 3,373.50 = 688.73 : x
  2. Step 2: Convert to fraction form
    2,248.88/3,373.50 = 688.73/x
  3. Step 3: Cross multiply
    2,248.88x = 3,373.50 × 688.73
  4. Step 4: Simplify right side
    2,248.88x = 2,323,430.66
  5. Step 5: Solve for x
    x = 2,323,430.66/2,248.88
  6. Step 6: Final answer
    x = 1,033.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.