Home / 3,079.38-4,249.42-1,682.13

Finding the Fourth Proportional to 3,079.38, 4,249.42 and 1,682.13

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Solution

The fourth proportional to 3,079.38, 4,249.42 and 1,682.13 is: 2,321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.38 : 4,249.42 = 1,682.13 : x
  2. Step 2: Convert to fraction form
    3,079.38/4,249.42 = 1,682.13/x
  3. Step 3: Cross multiply
    3,079.38x = 4,249.42 × 1,682.13
  4. Step 4: Simplify right side
    3,079.38x = 7,148,072.66
  5. Step 5: Solve for x
    x = 7,148,072.66/3,079.38
  6. Step 6: Final answer
    x = 2,321.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.