Home / 5,439.50-8,159.26-1,335.50

Finding the Fourth Proportional to 5,439.50, 8,159.26 and 1,335.50

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Solution

The fourth proportional to 5,439.50, 8,159.26 and 1,335.50 is: 2,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.50 : 8,159.26 = 1,335.50 : x
  2. Step 2: Convert to fraction form
    5,439.50/8,159.26 = 1,335.50/x
  3. Step 3: Cross multiply
    5,439.50x = 8,159.26 × 1,335.50
  4. Step 4: Simplify right side
    5,439.50x = 10,896,691.73
  5. Step 5: Solve for x
    x = 10,896,691.73/5,439.50
  6. Step 6: Final answer
    x = 2,003.25

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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.