Home / 5,239.80-7,231.15-2,882.02

Finding the Fourth Proportional to 5,239.80, 7,231.15 and 2,882.02

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Solution

The fourth proportional to 5,239.80, 7,231.15 and 2,882.02 is: 3,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.80 : 7,231.15 = 2,882.02 : x
  2. Step 2: Convert to fraction form
    5,239.80/7,231.15 = 2,882.02/x
  3. Step 3: Cross multiply
    5,239.80x = 7,231.15 × 2,882.02
  4. Step 4: Simplify right side
    5,239.80x = 20,840,318.92
  5. Step 5: Solve for x
    x = 20,840,318.92/5,239.80
  6. Step 6: Final answer
    x = 3,977.31

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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.