Home / 5,481.15-8,221.73-2,517.63

Finding the Fourth Proportional to 5,481.15, 8,221.73 and 2,517.63

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Solution

The fourth proportional to 5,481.15, 8,221.73 and 2,517.63 is: 3,776.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.15 : 8,221.73 = 2,517.63 : x
  2. Step 2: Convert to fraction form
    5,481.15/8,221.73 = 2,517.63/x
  3. Step 3: Cross multiply
    5,481.15x = 8,221.73 × 2,517.63
  4. Step 4: Simplify right side
    5,481.15x = 20,699,230.68
  5. Step 5: Solve for x
    x = 20,699,230.68/5,481.15
  6. Step 6: Final answer
    x = 3,776.44

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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.