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Finding the Fourth Proportional to 2,007.91, 3,010.24 and 838.80

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Solution

The fourth proportional to 2,007.91, 3,010.24 and 838.80 is: 1,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.91 : 3,010.24 = 838.80 : x
  2. Step 2: Convert to fraction form
    2,007.91/3,010.24 = 838.80/x
  3. Step 3: Cross multiply
    2,007.91x = 3,010.24 × 838.80
  4. Step 4: Simplify right side
    2,007.91x = 2,524,996.93
  5. Step 5: Solve for x
    x = 2,524,996.93/2,007.91
  6. Step 6: Final answer
    x = 1,257.53

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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.