Home / 5,239.20-7,850.88-3,504.72

Finding the Fourth Proportional to 5,239.20, 7,850.88 and 3,504.72

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Solution

The fourth proportional to 5,239.20, 7,850.88 and 3,504.72 is: 5,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.20 : 7,850.88 = 3,504.72 : x
  2. Step 2: Convert to fraction form
    5,239.20/7,850.88 = 3,504.72/x
  3. Step 3: Cross multiply
    5,239.20x = 7,850.88 × 3,504.72
  4. Step 4: Simplify right side
    5,239.20x = 27,515,136.15
  5. Step 5: Solve for x
    x = 27,515,136.15/5,239.20
  6. Step 6: Final answer
    x = 5,251.78

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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.