Home / 5,229.54-7,216.78-2,871.80

Finding the Fourth Proportional to 5,229.54, 7,216.78 and 2,871.80

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Solution

The fourth proportional to 5,229.54, 7,216.78 and 2,871.80 is: 3,963.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.54 : 7,216.78 = 2,871.80 : x
  2. Step 2: Convert to fraction form
    5,229.54/7,216.78 = 2,871.80/x
  3. Step 3: Cross multiply
    5,229.54x = 7,216.78 × 2,871.80
  4. Step 4: Simplify right side
    5,229.54x = 20,725,148.80
  5. Step 5: Solve for x
    x = 20,725,148.80/5,229.54
  6. Step 6: Final answer
    x = 3,963.09

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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.