Home / 5,789.28-7,986.24-3,691.20

Finding the Fourth Proportional to 5,789.28, 7,986.24 and 3,691.20

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Solution

The fourth proportional to 5,789.28, 7,986.24 and 3,691.20 is: 5,091.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.28 : 7,986.24 = 3,691.20 : x
  2. Step 2: Convert to fraction form
    5,789.28/7,986.24 = 3,691.20/x
  3. Step 3: Cross multiply
    5,789.28x = 7,986.24 × 3,691.20
  4. Step 4: Simplify right side
    5,789.28x = 29,478,809.09
  5. Step 5: Solve for x
    x = 29,478,809.09/5,789.28
  6. Step 6: Final answer
    x = 5,091.96

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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.