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Finding the Fourth Proportional to 1,982.43, 2,974.41 and 886.02

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Solution

The fourth proportional to 1,982.43, 2,974.41 and 886.02 is: 1,329.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.43 : 2,974.41 = 886.02 : x
  2. Step 2: Convert to fraction form
    1,982.43/2,974.41 = 886.02/x
  3. Step 3: Cross multiply
    1,982.43x = 2,974.41 × 886.02
  4. Step 4: Simplify right side
    1,982.43x = 2,635,386.75
  5. Step 5: Solve for x
    x = 2,635,386.75/1,982.43
  6. Step 6: Final answer
    x = 1,329.37

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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.