Home / 3,187.29-4,781.97-1,338.96

Finding the Fourth Proportional to 3,187.29, 4,781.97 and 1,338.96

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Solution

The fourth proportional to 3,187.29, 4,781.97 and 1,338.96 is: 2,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.29 : 4,781.97 = 1,338.96 : x
  2. Step 2: Convert to fraction form
    3,187.29/4,781.97 = 1,338.96/x
  3. Step 3: Cross multiply
    3,187.29x = 4,781.97 × 1,338.96
  4. Step 4: Simplify right side
    3,187.29x = 6,402,866.55
  5. Step 5: Solve for x
    x = 6,402,866.55/3,187.29
  6. Step 6: Final answer
    x = 2,008.87

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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.