Home / 5,201.72-7,178.28-2,843.84

Finding the Fourth Proportional to 5,201.72, 7,178.28 and 2,843.84

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Solution

The fourth proportional to 5,201.72, 7,178.28 and 2,843.84 is: 3,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,201.72 : 7,178.28 = 2,843.84 : x
  2. Step 2: Convert to fraction form
    5,201.72/7,178.28 = 2,843.84/x
  3. Step 3: Cross multiply
    5,201.72x = 7,178.28 × 2,843.84
  4. Step 4: Simplify right side
    5,201.72x = 20,413,879.80
  5. Step 5: Solve for x
    x = 20,413,879.80/5,201.72
  6. Step 6: Final answer
    x = 3,924.45

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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.