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Finding the Fourth Proportional to 3,272.67, 4,908.83 and 807.48

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Solution

The fourth proportional to 3,272.67, 4,908.83 and 807.48 is: 1,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.67 : 4,908.83 = 807.48 : x
  2. Step 2: Convert to fraction form
    3,272.67/4,908.83 = 807.48/x
  3. Step 3: Cross multiply
    3,272.67x = 4,908.83 × 807.48
  4. Step 4: Simplify right side
    3,272.67x = 3,963,778.01
  5. Step 5: Solve for x
    x = 3,963,778.01/3,272.67
  6. Step 6: Final answer
    x = 1,211.18

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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.