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Finding the Fourth Proportional to 1,498.12, 2,248.39 and 676.47

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Solution

The fourth proportional to 1,498.12, 2,248.39 and 676.47 is: 1,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498.12 : 2,248.39 = 676.47 : x
  2. Step 2: Convert to fraction form
    1,498.12/2,248.39 = 676.47/x
  3. Step 3: Cross multiply
    1,498.12x = 2,248.39 × 676.47
  4. Step 4: Simplify right side
    1,498.12x = 1,520,963.11
  5. Step 5: Solve for x
    x = 1,520,963.11/1,498.12
  6. Step 6: Final answer
    x = 1,015.25

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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.