Home / 5,500.87-8,249.56-1,990.41

Finding the Fourth Proportional to 5,500.87, 8,249.56 and 1,990.41

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Solution

The fourth proportional to 5,500.87, 8,249.56 and 1,990.41 is: 2,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.87 : 8,249.56 = 1,990.41 : x
  2. Step 2: Convert to fraction form
    5,500.87/8,249.56 = 1,990.41/x
  3. Step 3: Cross multiply
    5,500.87x = 8,249.56 × 1,990.41
  4. Step 4: Simplify right side
    5,500.87x = 16,420,006.72
  5. Step 5: Solve for x
    x = 16,420,006.72/5,500.87
  6. Step 6: Final answer
    x = 2,984.98

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.