Home / 5,201.45-7,178.22-2,843.74

Finding the Fourth Proportional to 5,201.45, 7,178.22 and 2,843.74

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Solution

The fourth proportional to 5,201.45, 7,178.22 and 2,843.74 is: 3,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.45 : 7,178.22 = 2,843.74 : x
  2. Step 2: Convert to fraction form
    5,201.45/7,178.22 = 2,843.74/x
  3. Step 3: Cross multiply
    5,201.45x = 7,178.22 × 2,843.74
  4. Step 4: Simplify right side
    5,201.45x = 20,412,991.34
  5. Step 5: Solve for x
    x = 20,412,991.34/5,201.45
  6. Step 6: Final answer
    x = 3,924.48

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Half scale
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Double scale
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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.