Home / 5,550.20-7,657.72-3,758.57

Finding the Fourth Proportional to 5,550.20, 7,657.72 and 3,758.57

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Solution

The fourth proportional to 5,550.20, 7,657.72 and 3,758.57 is: 5,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.20 : 7,657.72 = 3,758.57 : x
  2. Step 2: Convert to fraction form
    5,550.20/7,657.72 = 3,758.57/x
  3. Step 3: Cross multiply
    5,550.20x = 7,657.72 × 3,758.57
  4. Step 4: Simplify right side
    5,550.20x = 28,782,121.91
  5. Step 5: Solve for x
    x = 28,782,121.91/5,550.20
  6. Step 6: Final answer
    x = 5,185.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.