Home / 3,982.05-5,499.23-3,280.85

Finding the Fourth Proportional to 3,982.05, 5,499.23 and 3,280.85

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Solution

The fourth proportional to 3,982.05, 5,499.23 and 3,280.85 is: 4,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.05 : 5,499.23 = 3,280.85 : x
  2. Step 2: Convert to fraction form
    3,982.05/5,499.23 = 3,280.85/x
  3. Step 3: Cross multiply
    3,982.05x = 5,499.23 × 3,280.85
  4. Step 4: Simplify right side
    3,982.05x = 18,042,104.85
  5. Step 5: Solve for x
    x = 18,042,104.85/3,982.05
  6. Step 6: Final answer
    x = 4,530.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.