Home / 3,589.78-5,385.57-1,124.62

Finding the Fourth Proportional to 3,589.78, 5,385.57 and 1,124.62

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Solution

The fourth proportional to 3,589.78, 5,385.57 and 1,124.62 is: 1,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.78 : 5,385.57 = 1,124.62 : x
  2. Step 2: Convert to fraction form
    3,589.78/5,385.57 = 1,124.62/x
  3. Step 3: Cross multiply
    3,589.78x = 5,385.57 × 1,124.62
  4. Step 4: Simplify right side
    3,589.78x = 6,056,706.27
  5. Step 5: Solve for x
    x = 6,056,706.27/3,589.78
  6. Step 6: Final answer
    x = 1,687.21

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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.