Home / 5,520.38-7,618.39-3,162.53

Finding the Fourth Proportional to 5,520.38, 7,618.39 and 3,162.53

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Solution

The fourth proportional to 5,520.38, 7,618.39 and 3,162.53 is: 4,364.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.38 : 7,618.39 = 3,162.53 : x
  2. Step 2: Convert to fraction form
    5,520.38/7,618.39 = 3,162.53/x
  3. Step 3: Cross multiply
    5,520.38x = 7,618.39 × 3,162.53
  4. Step 4: Simplify right side
    5,520.38x = 24,093,348.83
  5. Step 5: Solve for x
    x = 24,093,348.83/5,520.38
  6. Step 6: Final answer
    x = 4,364.44

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Half scale
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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.