Home / 5,217.20-7,817.70-4,520.60

Finding the Fourth Proportional to 5,217.20, 7,817.70 and 4,520.60

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Solution

The fourth proportional to 5,217.20, 7,817.70 and 4,520.60 is: 6,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.20 : 7,817.70 = 4,520.60 : x
  2. Step 2: Convert to fraction form
    5,217.20/7,817.70 = 4,520.60/x
  3. Step 3: Cross multiply
    5,217.20x = 7,817.70 × 4,520.60
  4. Step 4: Simplify right side
    5,217.20x = 35,340,694.62
  5. Step 5: Solve for x
    x = 35,340,694.62/5,217.20
  6. Step 6: Final answer
    x = 6,773.88

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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.