Home / 5,229.86-7,217.32-2,871.98

Finding the Fourth Proportional to 5,229.86, 7,217.32 and 2,871.98

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Solution

The fourth proportional to 5,229.86, 7,217.32 and 2,871.98 is: 3,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.86 : 7,217.32 = 2,871.98 : x
  2. Step 2: Convert to fraction form
    5,229.86/7,217.32 = 2,871.98/x
  3. Step 3: Cross multiply
    5,229.86x = 7,217.32 × 2,871.98
  4. Step 4: Simplify right side
    5,229.86x = 20,727,998.69
  5. Step 5: Solve for x
    x = 20,727,998.69/5,229.86
  6. Step 6: Final answer
    x = 3,963.39

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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.