Home / 1,198.29-1,795.60-806.85

Finding the Fourth Proportional to 1,198.29, 1,795.60 and 806.85

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Solution

The fourth proportional to 1,198.29, 1,795.60 and 806.85 is: 1,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.29 : 1,795.60 = 806.85 : x
  2. Step 2: Convert to fraction form
    1,198.29/1,795.60 = 806.85/x
  3. Step 3: Cross multiply
    1,198.29x = 1,795.60 × 806.85
  4. Step 4: Simplify right side
    1,198.29x = 1,448,779.86
  5. Step 5: Solve for x
    x = 1,448,779.86/1,198.29
  6. Step 6: Final answer
    x = 1,209.04

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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.