Home / 2,758.46-4,135.66-1,198.40

Finding the Fourth Proportional to 2,758.46, 4,135.66 and 1,198.40

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Solution

The fourth proportional to 2,758.46, 4,135.66 and 1,198.40 is: 1,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.46 : 4,135.66 = 1,198.40 : x
  2. Step 2: Convert to fraction form
    2,758.46/4,135.66 = 1,198.40/x
  3. Step 3: Cross multiply
    2,758.46x = 4,135.66 × 1,198.40
  4. Step 4: Simplify right side
    2,758.46x = 4,956,151.27
  5. Step 5: Solve for x
    x = 4,956,151.27/2,758.46
  6. Step 6: Final answer
    x = 1,796.71

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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.