Home / 3,272.64-4,906.56-1,972.80

Finding the Fourth Proportional to 3,272.64, 4,906.56 and 1,972.80

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Solution

The fourth proportional to 3,272.64, 4,906.56 and 1,972.80 is: 2,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.64 : 4,906.56 = 1,972.80 : x
  2. Step 2: Convert to fraction form
    3,272.64/4,906.56 = 1,972.80/x
  3. Step 3: Cross multiply
    3,272.64x = 4,906.56 × 1,972.80
  4. Step 4: Simplify right side
    3,272.64x = 9,679,661.57
  5. Step 5: Solve for x
    x = 9,679,661.57/3,272.64
  6. Step 6: Final answer
    x = 2,957.75

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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.