Home / 5,439.20-7,505.58-3,081.34

Finding the Fourth Proportional to 5,439.20, 7,505.58 and 3,081.34

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Solution

The fourth proportional to 5,439.20, 7,505.58 and 3,081.34 is: 4,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.20 : 7,505.58 = 3,081.34 : x
  2. Step 2: Convert to fraction form
    5,439.20/7,505.58 = 3,081.34/x
  3. Step 3: Cross multiply
    5,439.20x = 7,505.58 × 3,081.34
  4. Step 4: Simplify right side
    5,439.20x = 23,127,243.88
  5. Step 5: Solve for x
    x = 23,127,243.88/5,439.20
  6. Step 6: Final answer
    x = 4,251.96

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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.