Home / 2,927.20-4,391.52-2,198.56

Finding the Fourth Proportional to 2,927.20, 4,391.52 and 2,198.56

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Solution

The fourth proportional to 2,927.20, 4,391.52 and 2,198.56 is: 3,298.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.20 : 4,391.52 = 2,198.56 : x
  2. Step 2: Convert to fraction form
    2,927.20/4,391.52 = 2,198.56/x
  3. Step 3: Cross multiply
    2,927.20x = 4,391.52 × 2,198.56
  4. Step 4: Simplify right side
    2,927.20x = 9,655,020.21
  5. Step 5: Solve for x
    x = 9,655,020.21/2,927.20
  6. Step 6: Final answer
    x = 3,298.38

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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.