Home / 3,789.11-5,685.64-2,864.39

Finding the Fourth Proportional to 3,789.11, 5,685.64 and 2,864.39

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Solution

The fourth proportional to 3,789.11, 5,685.64 and 2,864.39 is: 4,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.11 : 5,685.64 = 2,864.39 : x
  2. Step 2: Convert to fraction form
    3,789.11/5,685.64 = 2,864.39/x
  3. Step 3: Cross multiply
    3,789.11x = 5,685.64 × 2,864.39
  4. Step 4: Simplify right side
    3,789.11x = 16,285,854.77
  5. Step 5: Solve for x
    x = 16,285,854.77/3,789.11
  6. Step 6: Final answer
    x = 4,298.07

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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.