Home / 3,678.57-5,517.84-1,487.27

Finding the Fourth Proportional to 3,678.57, 5,517.84 and 1,487.27

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Solution

The fourth proportional to 3,678.57, 5,517.84 and 1,487.27 is: 2,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.57 : 5,517.84 = 1,487.27 : x
  2. Step 2: Convert to fraction form
    3,678.57/5,517.84 = 1,487.27/x
  3. Step 3: Cross multiply
    3,678.57x = 5,517.84 × 1,487.27
  4. Step 4: Simplify right side
    3,678.57x = 8,206,537.27
  5. Step 5: Solve for x
    x = 8,206,537.27/3,678.57
  6. Step 6: Final answer
    x = 2,230.90

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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.