Home / 5,042.72-7,566.24-2,121.68

Finding the Fourth Proportional to 5,042.72, 7,566.24 and 2,121.68

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Solution

The fourth proportional to 5,042.72, 7,566.24 and 2,121.68 is: 3,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,042.72 : 7,566.24 = 2,121.68 : x
  2. Step 2: Convert to fraction form
    5,042.72/7,566.24 = 2,121.68/x
  3. Step 3: Cross multiply
    5,042.72x = 7,566.24 × 2,121.68
  4. Step 4: Simplify right side
    5,042.72x = 16,053,140.08
  5. Step 5: Solve for x
    x = 16,053,140.08/5,042.72
  6. Step 6: Final answer
    x = 3,183.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.