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Finding the Fourth Proportional to 3,355.92, 5,029.01 and 1,891.95

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Solution

The fourth proportional to 3,355.92, 5,029.01 and 1,891.95 is: 2,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.92 : 5,029.01 = 1,891.95 : x
  2. Step 2: Convert to fraction form
    3,355.92/5,029.01 = 1,891.95/x
  3. Step 3: Cross multiply
    3,355.92x = 5,029.01 × 1,891.95
  4. Step 4: Simplify right side
    3,355.92x = 9,514,635.47
  5. Step 5: Solve for x
    x = 9,514,635.47/3,355.92
  6. Step 6: Final answer
    x = 2,835.18

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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.