Home / 3,278.24-4,918.66-1,198.40

Finding the Fourth Proportional to 3,278.24, 4,918.66 and 1,198.40

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Solution

The fourth proportional to 3,278.24, 4,918.66 and 1,198.40 is: 1,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.24 : 4,918.66 = 1,198.40 : x
  2. Step 2: Convert to fraction form
    3,278.24/4,918.66 = 1,198.40/x
  3. Step 3: Cross multiply
    3,278.24x = 4,918.66 × 1,198.40
  4. Step 4: Simplify right side
    3,278.24x = 5,894,494.55
  5. Step 5: Solve for x
    x = 5,894,494.55/3,278.24
  6. Step 6: Final answer
    x = 1,798.07

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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.