Home / 5,399.28-7,450.46-3,983.74

Finding the Fourth Proportional to 5,399.28, 7,450.46 and 3,983.74

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Solution

The fourth proportional to 5,399.28, 7,450.46 and 3,983.74 is: 5,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.28 : 7,450.46 = 3,983.74 : x
  2. Step 2: Convert to fraction form
    5,399.28/7,450.46 = 3,983.74/x
  3. Step 3: Cross multiply
    5,399.28x = 7,450.46 × 3,983.74
  4. Step 4: Simplify right side
    5,399.28x = 29,680,695.52
  5. Step 5: Solve for x
    x = 29,680,695.52/5,399.28
  6. Step 6: Final answer
    x = 5,497.16

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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.