Home / 5,274.20-7,278.17-2,884.11

Finding the Fourth Proportional to 5,274.20, 7,278.17 and 2,884.11

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Solution

The fourth proportional to 5,274.20, 7,278.17 and 2,884.11 is: 3,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.20 : 7,278.17 = 2,884.11 : x
  2. Step 2: Convert to fraction form
    5,274.20/7,278.17 = 2,884.11/x
  3. Step 3: Cross multiply
    5,274.20x = 7,278.17 × 2,884.11
  4. Step 4: Simplify right side
    5,274.20x = 20,991,042.88
  5. Step 5: Solve for x
    x = 20,991,042.88/5,274.20
  6. Step 6: Final answer
    x = 3,979.95

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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.