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Finding the Fourth Proportional to 3,010.94, 4,516.42 and 819.68

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Solution

The fourth proportional to 3,010.94, 4,516.42 and 819.68 is: 1,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.94 : 4,516.42 = 819.68 : x
  2. Step 2: Convert to fraction form
    3,010.94/4,516.42 = 819.68/x
  3. Step 3: Cross multiply
    3,010.94x = 4,516.42 × 819.68
  4. Step 4: Simplify right side
    3,010.94x = 3,702,019.15
  5. Step 5: Solve for x
    x = 3,702,019.15/3,010.94
  6. Step 6: Final answer
    x = 1,229.52

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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.