Home / 3,609.92-5,410.56-2,221.04

Finding the Fourth Proportional to 3,609.92, 5,410.56 and 2,221.04

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Solution

The fourth proportional to 3,609.92, 5,410.56 and 2,221.04 is: 3,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.92 : 5,410.56 = 2,221.04 : x
  2. Step 2: Convert to fraction form
    3,609.92/5,410.56 = 2,221.04/x
  3. Step 3: Cross multiply
    3,609.92x = 5,410.56 × 2,221.04
  4. Step 4: Simplify right side
    3,609.92x = 12,017,070.18
  5. Step 5: Solve for x
    x = 12,017,070.18/3,609.92
  6. Step 6: Final answer
    x = 3,328.90

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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.