Home / 5,500.29-8,251.25-1,990.56

Finding the Fourth Proportional to 5,500.29, 8,251.25 and 1,990.56

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Solution

The fourth proportional to 5,500.29, 8,251.25 and 1,990.56 is: 2,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.29 : 8,251.25 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    5,500.29/8,251.25 = 1,990.56/x
  3. Step 3: Cross multiply
    5,500.29x = 8,251.25 × 1,990.56
  4. Step 4: Simplify right side
    5,500.29x = 16,424,608.20
  5. Step 5: Solve for x
    x = 16,424,608.20/5,500.29
  6. Step 6: Final answer
    x = 2,986.13

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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.