Home / 3,488.12-5,229.40-2,389.12

Finding the Fourth Proportional to 3,488.12, 5,229.40 and 2,389.12

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Solution

The fourth proportional to 3,488.12, 5,229.40 and 2,389.12 is: 3,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.12 : 5,229.40 = 2,389.12 : x
  2. Step 2: Convert to fraction form
    3,488.12/5,229.40 = 2,389.12/x
  3. Step 3: Cross multiply
    3,488.12x = 5,229.40 × 2,389.12
  4. Step 4: Simplify right side
    3,488.12x = 12,493,664.13
  5. Step 5: Solve for x
    x = 12,493,664.13/3,488.12
  6. Step 6: Final answer
    x = 3,581.78

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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.