Home / 3,456.68-4,772.18-2,279.79

Finding the Fourth Proportional to 3,456.68, 4,772.18 and 2,279.79

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Solution

The fourth proportional to 3,456.68, 4,772.18 and 2,279.79 is: 3,147.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.68 : 4,772.18 = 2,279.79 : x
  2. Step 2: Convert to fraction form
    3,456.68/4,772.18 = 2,279.79/x
  3. Step 3: Cross multiply
    3,456.68x = 4,772.18 × 2,279.79
  4. Step 4: Simplify right side
    3,456.68x = 10,879,573.94
  5. Step 5: Solve for x
    x = 10,879,573.94/3,456.68
  6. Step 6: Final answer
    x = 3,147.41

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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.