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Finding the Fourth Proportional to 3,253.28, 4,881 and 2,161.94

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Solution

The fourth proportional to 3,253.28, 4,881 and 2,161.94 is: 3,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.28 : 4,881 = 2,161.94 : x
  2. Step 2: Convert to fraction form
    3,253.28/4,881 = 2,161.94/x
  3. Step 3: Cross multiply
    3,253.28x = 4,881 × 2,161.94
  4. Step 4: Simplify right side
    3,253.28x = 10,552,429.14
  5. Step 5: Solve for x
    x = 10,552,429.14/3,253.28
  6. Step 6: Final answer
    x = 3,243.63

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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.