Home / 3,722.92-5,137.26-2,151.52

Finding the Fourth Proportional to 3,722.92, 5,137.26 and 2,151.52

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Solution

The fourth proportional to 3,722.92, 5,137.26 and 2,151.52 is: 2,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.92 : 5,137.26 = 2,151.52 : x
  2. Step 2: Convert to fraction form
    3,722.92/5,137.26 = 2,151.52/x
  3. Step 3: Cross multiply
    3,722.92x = 5,137.26 × 2,151.52
  4. Step 4: Simplify right side
    3,722.92x = 11,052,917.64
  5. Step 5: Solve for x
    x = 11,052,917.64/3,722.92
  6. Step 6: Final answer
    x = 2,968.88

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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.