Home / 5,792.28-7,993.38-3,139.71

Finding the Fourth Proportional to 5,792.28, 7,993.38 and 3,139.71

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Solution

The fourth proportional to 5,792.28, 7,993.38 and 3,139.71 is: 4,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.28 : 7,993.38 = 3,139.71 : x
  2. Step 2: Convert to fraction form
    5,792.28/7,993.38 = 3,139.71/x
  3. Step 3: Cross multiply
    5,792.28x = 7,993.38 × 3,139.71
  4. Step 4: Simplify right side
    5,792.28x = 25,096,921.88
  5. Step 5: Solve for x
    x = 25,096,921.88/5,792.28
  6. Step 6: Final answer
    x = 4,332.82

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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.