Home / 7,276.60-10,910.85-3,115.90

Finding the Fourth Proportional to 7,276.60, 10,910.85 and 3,115.90

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Solution

The fourth proportional to 7,276.60, 10,910.85 and 3,115.90 is: 4,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.60 : 10,910.85 = 3,115.90 : x
  2. Step 2: Convert to fraction form
    7,276.60/10,910.85 = 3,115.90/x
  3. Step 3: Cross multiply
    7,276.60x = 10,910.85 × 3,115.90
  4. Step 4: Simplify right side
    7,276.60x = 33,997,117.52
  5. Step 5: Solve for x
    x = 33,997,117.52/7,276.60
  6. Step 6: Final answer
    x = 4,672.12

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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.