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Finding the Fourth Proportional to 2,660.57, 3,672.03 and 2,029.91

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Solution

The fourth proportional to 2,660.57, 3,672.03 and 2,029.91 is: 2,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.57 : 3,672.03 = 2,029.91 : x
  2. Step 2: Convert to fraction form
    2,660.57/3,672.03 = 2,029.91/x
  3. Step 3: Cross multiply
    2,660.57x = 3,672.03 × 2,029.91
  4. Step 4: Simplify right side
    2,660.57x = 7,453,879.67
  5. Step 5: Solve for x
    x = 7,453,879.67/2,660.57
  6. Step 6: Final answer
    x = 2,801.61

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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.