Home / 5,403.87-8,104.32-3,426.57

Finding the Fourth Proportional to 5,403.87, 8,104.32 and 3,426.57

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Solution

The fourth proportional to 5,403.87, 8,104.32 and 3,426.57 is: 5,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.87 : 8,104.32 = 3,426.57 : x
  2. Step 2: Convert to fraction form
    5,403.87/8,104.32 = 3,426.57/x
  3. Step 3: Cross multiply
    5,403.87x = 8,104.32 × 3,426.57
  4. Step 4: Simplify right side
    5,403.87x = 27,770,019.78
  5. Step 5: Solve for x
    x = 27,770,019.78/5,403.87
  6. Step 6: Final answer
    x = 5,138.91

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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.