Home / 3,391.38-5,085.41-1,199.79

Finding the Fourth Proportional to 3,391.38, 5,085.41 and 1,199.79

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Solution

The fourth proportional to 3,391.38, 5,085.41 and 1,199.79 is: 1,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.38 : 5,085.41 = 1,199.79 : x
  2. Step 2: Convert to fraction form
    3,391.38/5,085.41 = 1,199.79/x
  3. Step 3: Cross multiply
    3,391.38x = 5,085.41 × 1,199.79
  4. Step 4: Simplify right side
    3,391.38x = 6,101,418.06
  5. Step 5: Solve for x
    x = 6,101,418.06/3,391.38
  6. Step 6: Final answer
    x = 1,799.10

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1.5x scale

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.