Home / 5,249.44-7,876.60-2,131.59

Finding the Fourth Proportional to 5,249.44, 7,876.60 and 2,131.59

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Solution

The fourth proportional to 5,249.44, 7,876.60 and 2,131.59 is: 3,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.44 : 7,876.60 = 2,131.59 : x
  2. Step 2: Convert to fraction form
    5,249.44/7,876.60 = 2,131.59/x
  3. Step 3: Cross multiply
    5,249.44x = 7,876.60 × 2,131.59
  4. Step 4: Simplify right side
    5,249.44x = 16,789,706.00
  5. Step 5: Solve for x
    x = 16,789,706.00/5,249.44
  6. Step 6: Final answer
    x = 3,198.38

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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.