Home / 5,499.60-8,249.78-2,212.70

Finding the Fourth Proportional to 5,499.60, 8,249.78 and 2,212.70

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Solution

The fourth proportional to 5,499.60, 8,249.78 and 2,212.70 is: 3,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,499.60 : 8,249.78 = 2,212.70 : x
  2. Step 2: Convert to fraction form
    5,499.60/8,249.78 = 2,212.70/x
  3. Step 3: Cross multiply
    5,499.60x = 8,249.78 × 2,212.70
  4. Step 4: Simplify right side
    5,499.60x = 18,254,288.21
  5. Step 5: Solve for x
    x = 18,254,288.21/5,499.60
  6. Step 6: Final answer
    x = 3,319.20

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Half 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.