Home / 5,229.81-7,217.14-2,872.10

Finding the Fourth Proportional to 5,229.81, 7,217.14 and 2,872.10

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Solution

The fourth proportional to 5,229.81, 7,217.14 and 2,872.10 is: 3,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.81 : 7,217.14 = 2,872.10 : x
  2. Step 2: Convert to fraction form
    5,229.81/7,217.14 = 2,872.10/x
  3. Step 3: Cross multiply
    5,229.81x = 7,217.14 × 2,872.10
  4. Step 4: Simplify right side
    5,229.81x = 20,728,347.79
  5. Step 5: Solve for x
    x = 20,728,347.79/5,229.81
  6. Step 6: Final answer
    x = 3,963.50

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1.5x scale

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.