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Finding the Fourth Proportional to 2,133.41, 3,201.09 and 963.72

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Solution

The fourth proportional to 2,133.41, 3,201.09 and 963.72 is: 1,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.41 : 3,201.09 = 963.72 : x
  2. Step 2: Convert to fraction form
    2,133.41/3,201.09 = 963.72/x
  3. Step 3: Cross multiply
    2,133.41x = 3,201.09 × 963.72
  4. Step 4: Simplify right side
    2,133.41x = 3,084,954.45
  5. Step 5: Solve for x
    x = 3,084,954.45/2,133.41
  6. Step 6: Final answer
    x = 1,446.02

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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.