Home / 3,764.28-5,648.43-2,120.94

Finding the Fourth Proportional to 3,764.28, 5,648.43 and 2,120.94

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Solution

The fourth proportional to 3,764.28, 5,648.43 and 2,120.94 is: 3,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.28 : 5,648.43 = 2,120.94 : x
  2. Step 2: Convert to fraction form
    3,764.28/5,648.43 = 2,120.94/x
  3. Step 3: Cross multiply
    3,764.28x = 5,648.43 × 2,120.94
  4. Step 4: Simplify right side
    3,764.28x = 11,979,981.12
  5. Step 5: Solve for x
    x = 11,979,981.12/3,764.28
  6. Step 6: Final answer
    x = 3,182.54

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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.