Home / 1,248.05-1,874.17-1,198.39

Finding the Fourth Proportional to 1,248.05, 1,874.17 and 1,198.39

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Solution

The fourth proportional to 1,248.05, 1,874.17 and 1,198.39 is: 1,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.05 : 1,874.17 = 1,198.39 : x
  2. Step 2: Convert to fraction form
    1,248.05/1,874.17 = 1,198.39/x
  3. Step 3: Cross multiply
    1,248.05x = 1,874.17 × 1,198.39
  4. Step 4: Simplify right side
    1,248.05x = 2,245,978.90
  5. Step 5: Solve for x
    x = 2,245,978.90/1,248.05
  6. Step 6: Final answer
    x = 1,799.59

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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.