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Finding the Fourth Proportional to 1,498.97, 2,248.57 and 511.48

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Solution

The fourth proportional to 1,498.97, 2,248.57 and 511.48 is: 767.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498.97 : 2,248.57 = 511.48 : x
  2. Step 2: Convert to fraction form
    1,498.97/2,248.57 = 511.48/x
  3. Step 3: Cross multiply
    1,498.97x = 2,248.57 × 511.48
  4. Step 4: Simplify right side
    1,498.97x = 1,150,098.58
  5. Step 5: Solve for x
    x = 1,150,098.58/1,498.97
  6. Step 6: Final answer
    x = 767.26

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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.