Home / 5,785.38-7,983.83-3,132.78

Finding the Fourth Proportional to 5,785.38, 7,983.83 and 3,132.78

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Solution

The fourth proportional to 5,785.38, 7,983.83 and 3,132.78 is: 4,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.38 : 7,983.83 = 3,132.78 : x
  2. Step 2: Convert to fraction form
    5,785.38/7,983.83 = 3,132.78/x
  3. Step 3: Cross multiply
    5,785.38x = 7,983.83 × 3,132.78
  4. Step 4: Simplify right side
    5,785.38x = 25,011,567.28
  5. Step 5: Solve for x
    x = 25,011,567.28/5,785.38
  6. Step 6: Final answer
    x = 4,323.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.