Home / 3,278.78-4,916.96-1,198.17

Finding the Fourth Proportional to 3,278.78, 4,916.96 and 1,198.17

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Solution

The fourth proportional to 3,278.78, 4,916.96 and 1,198.17 is: 1,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.78 : 4,916.96 = 1,198.17 : x
  2. Step 2: Convert to fraction form
    3,278.78/4,916.96 = 1,198.17/x
  3. Step 3: Cross multiply
    3,278.78x = 4,916.96 × 1,198.17
  4. Step 4: Simplify right side
    3,278.78x = 5,891,329.38
  5. Step 5: Solve for x
    x = 5,891,329.38/3,278.78
  6. Step 6: Final answer
    x = 1,796.81

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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.