Home / 3,517.65-5,278.30-2,551.72

Finding the Fourth Proportional to 3,517.65, 5,278.30 and 2,551.72

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Solution

The fourth proportional to 3,517.65, 5,278.30 and 2,551.72 is: 3,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.65 : 5,278.30 = 2,551.72 : x
  2. Step 2: Convert to fraction form
    3,517.65/5,278.30 = 2,551.72/x
  3. Step 3: Cross multiply
    3,517.65x = 5,278.30 × 2,551.72
  4. Step 4: Simplify right side
    3,517.65x = 13,468,743.68
  5. Step 5: Solve for x
    x = 13,468,743.68/3,517.65
  6. Step 6: Final answer
    x = 3,828.90

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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.