Home / 5,439.62-8,156.18-2,515.52

Finding the Fourth Proportional to 5,439.62, 8,156.18 and 2,515.52

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Solution

The fourth proportional to 5,439.62, 8,156.18 and 2,515.52 is: 3,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.62 : 8,156.18 = 2,515.52 : x
  2. Step 2: Convert to fraction form
    5,439.62/8,156.18 = 2,515.52/x
  3. Step 3: Cross multiply
    5,439.62x = 8,156.18 × 2,515.52
  4. Step 4: Simplify right side
    5,439.62x = 20,517,033.91
  5. Step 5: Solve for x
    x = 20,517,033.91/5,439.62
  6. Step 6: Final answer
    x = 3,771.78

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1.5x scale

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.