Home / 5,480.82-8,221.68-2,192.12

Finding the Fourth Proportional to 5,480.82, 8,221.68 and 2,192.12

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Solution

The fourth proportional to 5,480.82, 8,221.68 and 2,192.12 is: 3,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.82 : 8,221.68 = 2,192.12 : x
  2. Step 2: Convert to fraction form
    5,480.82/8,221.68 = 2,192.12/x
  3. Step 3: Cross multiply
    5,480.82x = 8,221.68 × 2,192.12
  4. Step 4: Simplify right side
    5,480.82x = 18,022,909.16
  5. Step 5: Solve for x
    x = 18,022,909.16/5,480.82
  6. Step 6: Final answer
    x = 3,288.36

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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.