Home / 3,821.76-5,724.96-2,281.92

Finding the Fourth Proportional to 3,821.76, 5,724.96 and 2,281.92

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Solution

The fourth proportional to 3,821.76, 5,724.96 and 2,281.92 is: 3,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.76 : 5,724.96 = 2,281.92 : x
  2. Step 2: Convert to fraction form
    3,821.76/5,724.96 = 2,281.92/x
  3. Step 3: Cross multiply
    3,821.76x = 5,724.96 × 2,281.92
  4. Step 4: Simplify right side
    3,821.76x = 13,063,900.72
  5. Step 5: Solve for x
    x = 13,063,900.72/3,821.76
  6. Step 6: Final answer
    x = 3,418.29

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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.