Home / 5,481.44-7,565.12-3,123.76

Finding the Fourth Proportional to 5,481.44, 7,565.12 and 3,123.76

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Solution

The fourth proportional to 5,481.44, 7,565.12 and 3,123.76 is: 4,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.44 : 7,565.12 = 3,123.76 : x
  2. Step 2: Convert to fraction form
    5,481.44/7,565.12 = 3,123.76/x
  3. Step 3: Cross multiply
    5,481.44x = 7,565.12 × 3,123.76
  4. Step 4: Simplify right side
    5,481.44x = 23,631,619.25
  5. Step 5: Solve for x
    x = 23,631,619.25/5,481.44
  6. Step 6: Final answer
    x = 4,311.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.