Home / 2,428.11-3,639.33-1,042.20

Finding the Fourth Proportional to 2,428.11, 3,639.33 and 1,042.20

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Solution

The fourth proportional to 2,428.11, 3,639.33 and 1,042.20 is: 1,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.11 : 3,639.33 = 1,042.20 : x
  2. Step 2: Convert to fraction form
    2,428.11/3,639.33 = 1,042.20/x
  3. Step 3: Cross multiply
    2,428.11x = 3,639.33 × 1,042.20
  4. Step 4: Simplify right side
    2,428.11x = 3,792,909.73
  5. Step 5: Solve for x
    x = 3,792,909.73/2,428.11
  6. Step 6: Final answer
    x = 1,562.08

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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.