Home / 3,079.09-4,620.56-1,229.92

Finding the Fourth Proportional to 3,079.09, 4,620.56 and 1,229.92

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Solution

The fourth proportional to 3,079.09, 4,620.56 and 1,229.92 is: 1,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.09 : 4,620.56 = 1,229.92 : x
  2. Step 2: Convert to fraction form
    3,079.09/4,620.56 = 1,229.92/x
  3. Step 3: Cross multiply
    3,079.09x = 4,620.56 × 1,229.92
  4. Step 4: Simplify right side
    3,079.09x = 5,682,919.16
  5. Step 5: Solve for x
    x = 5,682,919.16/3,079.09
  6. Step 6: Final answer
    x = 1,845.65

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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.