Home / 5,519.76-8,280-2,231.04

Finding the Fourth Proportional to 5,519.76, 8,280 and 2,231.04

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Solution

The fourth proportional to 5,519.76, 8,280 and 2,231.04 is: 3,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.76 : 8,280 = 2,231.04 : x
  2. Step 2: Convert to fraction form
    5,519.76/8,280 = 2,231.04/x
  3. Step 3: Cross multiply
    5,519.76x = 8,280 × 2,231.04
  4. Step 4: Simplify right side
    5,519.76x = 18,473,011.20
  5. Step 5: Solve for x
    x = 18,473,011.20/5,519.76
  6. Step 6: Final answer
    x = 3,346.71

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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.