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Finding the Fourth Proportional to 2,680.56, 4,020.48 and 732.96

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Solution

The fourth proportional to 2,680.56, 4,020.48 and 732.96 is: 1,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.56 : 4,020.48 = 732.96 : x
  2. Step 2: Convert to fraction form
    2,680.56/4,020.48 = 732.96/x
  3. Step 3: Cross multiply
    2,680.56x = 4,020.48 × 732.96
  4. Step 4: Simplify right side
    2,680.56x = 2,946,851.02
  5. Step 5: Solve for x
    x = 2,946,851.02/2,680.56
  6. Step 6: Final answer
    x = 1,099.34

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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.