Home / 5,201.62-7,178.49-2,843.98

Finding the Fourth Proportional to 5,201.62, 7,178.49 and 2,843.98

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Solution

The fourth proportional to 5,201.62, 7,178.49 and 2,843.98 is: 3,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.62 : 7,178.49 = 2,843.98 : x
  2. Step 2: Convert to fraction form
    5,201.62/7,178.49 = 2,843.98/x
  3. Step 3: Cross multiply
    5,201.62x = 7,178.49 × 2,843.98
  4. Step 4: Simplify right side
    5,201.62x = 20,415,481.99
  5. Step 5: Solve for x
    x = 20,415,481.99/5,201.62
  6. Step 6: Final answer
    x = 3,924.83

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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.