Home / 5,418.65-8,127.05-2,132.68

Finding the Fourth Proportional to 5,418.65, 8,127.05 and 2,132.68

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Solution

The fourth proportional to 5,418.65, 8,127.05 and 2,132.68 is: 3,198.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.65 : 8,127.05 = 2,132.68 : x
  2. Step 2: Convert to fraction form
    5,418.65/8,127.05 = 2,132.68/x
  3. Step 3: Cross multiply
    5,418.65x = 8,127.05 × 2,132.68
  4. Step 4: Simplify right side
    5,418.65x = 17,332,382.01
  5. Step 5: Solve for x
    x = 17,332,382.01/5,418.65
  6. Step 6: Final answer
    x = 3,198.66

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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.