Home / 5,230.18-7,217.70-2,872.42

Finding the Fourth Proportional to 5,230.18, 7,217.70 and 2,872.42

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Solution

The fourth proportional to 5,230.18, 7,217.70 and 2,872.42 is: 3,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.18 : 7,217.70 = 2,872.42 : x
  2. Step 2: Convert to fraction form
    5,230.18/7,217.70 = 2,872.42/x
  3. Step 3: Cross multiply
    5,230.18x = 7,217.70 × 2,872.42
  4. Step 4: Simplify right side
    5,230.18x = 20,732,265.83
  5. Step 5: Solve for x
    x = 20,732,265.83/5,230.18
  6. Step 6: Final answer
    x = 3,963.97

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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.