Home / 3,219.62-4,821.17-2,231.03

Finding the Fourth Proportional to 3,219.62, 4,821.17 and 2,231.03

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Solution

The fourth proportional to 3,219.62, 4,821.17 and 2,231.03 is: 3,340.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.62 : 4,821.17 = 2,231.03 : x
  2. Step 2: Convert to fraction form
    3,219.62/4,821.17 = 2,231.03/x
  3. Step 3: Cross multiply
    3,219.62x = 4,821.17 × 2,231.03
  4. Step 4: Simplify right side
    3,219.62x = 10,756,139.64
  5. Step 5: Solve for x
    x = 10,756,139.64/3,219.62
  6. Step 6: Final answer
    x = 3,340.82

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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.