Home / 5,500.30-8,250.45-5,305.90

Finding the Fourth Proportional to 5,500.30, 8,250.45 and 5,305.90

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Solution

The fourth proportional to 5,500.30, 8,250.45 and 5,305.90 is: 7,958.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.30 : 8,250.45 = 5,305.90 : x
  2. Step 2: Convert to fraction form
    5,500.30/8,250.45 = 5,305.90/x
  3. Step 3: Cross multiply
    5,500.30x = 8,250.45 × 5,305.90
  4. Step 4: Simplify right side
    5,500.30x = 43,776,062.66
  5. Step 5: Solve for x
    x = 43,776,062.66/5,500.30
  6. Step 6: Final answer
    x = 7,958.85

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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.