Home / 5,481.12-8,222.40-3,289.44

Finding the Fourth Proportional to 5,481.12, 8,222.40 and 3,289.44

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Solution

The fourth proportional to 5,481.12, 8,222.40 and 3,289.44 is: 4,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.12 : 8,222.40 = 3,289.44 : x
  2. Step 2: Convert to fraction form
    5,481.12/8,222.40 = 3,289.44/x
  3. Step 3: Cross multiply
    5,481.12x = 8,222.40 × 3,289.44
  4. Step 4: Simplify right side
    5,481.12x = 27,047,091.46
  5. Step 5: Solve for x
    x = 27,047,091.46/5,481.12
  6. Step 6: Final answer
    x = 4,934.59

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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.