Home / 5,229.81-7,216.89-2,871.99

Finding the Fourth Proportional to 5,229.81, 7,216.89 and 2,871.99

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Solution

The fourth proportional to 5,229.81, 7,216.89 and 2,871.99 is: 3,963.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.81 : 7,216.89 = 2,871.99 : x
  2. Step 2: Convert to fraction form
    5,229.81/7,216.89 = 2,871.99/x
  3. Step 3: Cross multiply
    5,229.81x = 7,216.89 × 2,871.99
  4. Step 4: Simplify right side
    5,229.81x = 20,726,835.91
  5. Step 5: Solve for x
    x = 20,726,835.91/5,229.81
  6. Step 6: Final answer
    x = 3,963.21

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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.