Home / 5,439.76-7,506.44-3,081.31

Finding the Fourth Proportional to 5,439.76, 7,506.44 and 3,081.31

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Solution

The fourth proportional to 5,439.76, 7,506.44 and 3,081.31 is: 4,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.76 : 7,506.44 = 3,081.31 : x
  2. Step 2: Convert to fraction form
    5,439.76/7,506.44 = 3,081.31/x
  3. Step 3: Cross multiply
    5,439.76x = 7,506.44 × 3,081.31
  4. Step 4: Simplify right side
    5,439.76x = 23,129,646.02
  5. Step 5: Solve for x
    x = 23,129,646.02/5,439.76
  6. Step 6: Final answer
    x = 4,251.96

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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.