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Finding the Fourth Proportional to 1,892.17, 2,839.97 and 968.36

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Solution

The fourth proportional to 1,892.17, 2,839.97 and 968.36 is: 1,453.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.17 : 2,839.97 = 968.36 : x
  2. Step 2: Convert to fraction form
    1,892.17/2,839.97 = 968.36/x
  3. Step 3: Cross multiply
    1,892.17x = 2,839.97 × 968.36
  4. Step 4: Simplify right side
    1,892.17x = 2,750,122.87
  5. Step 5: Solve for x
    x = 2,750,122.87/1,892.17
  6. Step 6: Final answer
    x = 1,453.42

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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.