Home / 3,639.20-5,458.82-1,447.95

Finding the Fourth Proportional to 3,639.20, 5,458.82 and 1,447.95

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Solution

The fourth proportional to 3,639.20, 5,458.82 and 1,447.95 is: 2,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.20 : 5,458.82 = 1,447.95 : x
  2. Step 2: Convert to fraction form
    3,639.20/5,458.82 = 1,447.95/x
  3. Step 3: Cross multiply
    3,639.20x = 5,458.82 × 1,447.95
  4. Step 4: Simplify right side
    3,639.20x = 7,904,098.42
  5. Step 5: Solve for x
    x = 7,904,098.42/3,639.20
  6. Step 6: Final answer
    x = 2,171.93

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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.