Home / 3,391.47-5,085.38-1,198.56

Finding the Fourth Proportional to 3,391.47, 5,085.38 and 1,198.56

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Solution

The fourth proportional to 3,391.47, 5,085.38 and 1,198.56 is: 1,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.47 : 5,085.38 = 1,198.56 : x
  2. Step 2: Convert to fraction form
    3,391.47/5,085.38 = 1,198.56/x
  3. Step 3: Cross multiply
    3,391.47x = 5,085.38 × 1,198.56
  4. Step 4: Simplify right side
    3,391.47x = 6,095,155.12
  5. Step 5: Solve for x
    x = 6,095,155.12/3,391.47
  6. Step 6: Final answer
    x = 1,797.20

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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.