Home / 5,639.29-8,449.20-3,738.44

Finding the Fourth Proportional to 5,639.29, 8,449.20 and 3,738.44

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Solution

The fourth proportional to 5,639.29, 8,449.20 and 3,738.44 is: 5,601.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.29 : 8,449.20 = 3,738.44 : x
  2. Step 2: Convert to fraction form
    5,639.29/8,449.20 = 3,738.44/x
  3. Step 3: Cross multiply
    5,639.29x = 8,449.20 × 3,738.44
  4. Step 4: Simplify right side
    5,639.29x = 31,586,827.25
  5. Step 5: Solve for x
    x = 31,586,827.25/5,639.29
  6. Step 6: Final answer
    x = 5,601.21

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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.