Home / 3,789.92-5,677.32-1,836.20

Finding the Fourth Proportional to 3,789.92, 5,677.32 and 1,836.20

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Solution

The fourth proportional to 3,789.92, 5,677.32 and 1,836.20 is: 2,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.92 : 5,677.32 = 1,836.20 : x
  2. Step 2: Convert to fraction form
    3,789.92/5,677.32 = 1,836.20/x
  3. Step 3: Cross multiply
    3,789.92x = 5,677.32 × 1,836.20
  4. Step 4: Simplify right side
    3,789.92x = 10,424,694.98
  5. Step 5: Solve for x
    x = 10,424,694.98/3,789.92
  6. Step 6: Final answer
    x = 2,750.64

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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.