Home / 2,798.57-4,198.31-949.95

Finding the Fourth Proportional to 2,798.57, 4,198.31 and 949.95

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Solution

The fourth proportional to 2,798.57, 4,198.31 and 949.95 is: 1,425.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.57 : 4,198.31 = 949.95 : x
  2. Step 2: Convert to fraction form
    2,798.57/4,198.31 = 949.95/x
  3. Step 3: Cross multiply
    2,798.57x = 4,198.31 × 949.95
  4. Step 4: Simplify right side
    2,798.57x = 3,988,179.83
  5. Step 5: Solve for x
    x = 3,988,179.83/2,798.57
  6. Step 6: Final answer
    x = 1,425.08

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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.