Home / 3,439.20-5,155.68-2,206.96

Finding the Fourth Proportional to 3,439.20, 5,155.68 and 2,206.96

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Solution

The fourth proportional to 3,439.20, 5,155.68 and 2,206.96 is: 3,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.20 : 5,155.68 = 2,206.96 : x
  2. Step 2: Convert to fraction form
    3,439.20/5,155.68 = 2,206.96/x
  3. Step 3: Cross multiply
    3,439.20x = 5,155.68 × 2,206.96
  4. Step 4: Simplify right side
    3,439.20x = 11,378,379.53
  5. Step 5: Solve for x
    x = 11,378,379.53/3,439.20
  6. Step 6: Final answer
    x = 3,308.44

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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.