Home / 7,179.24-10,771.92-2,799.78

Finding the Fourth Proportional to 7,179.24, 10,771.92 and 2,799.78

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Solution

The fourth proportional to 7,179.24, 10,771.92 and 2,799.78 is: 4,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.24 : 10,771.92 = 2,799.78 : x
  2. Step 2: Convert to fraction form
    7,179.24/10,771.92 = 2,799.78/x
  3. Step 3: Cross multiply
    7,179.24x = 10,771.92 × 2,799.78
  4. Step 4: Simplify right side
    7,179.24x = 30,159,006.18
  5. Step 5: Solve for x
    x = 30,159,006.18/7,179.24
  6. Step 6: Final answer
    x = 4,200.86

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1.5x scale

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.