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Finding the Fourth Proportional to 1,841.67, 2,760.49 and 905.26

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Solution

The fourth proportional to 1,841.67, 2,760.49 and 905.26 is: 1,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.67 : 2,760.49 = 905.26 : x
  2. Step 2: Convert to fraction form
    1,841.67/2,760.49 = 905.26/x
  3. Step 3: Cross multiply
    1,841.67x = 2,760.49 × 905.26
  4. Step 4: Simplify right side
    1,841.67x = 2,498,961.18
  5. Step 5: Solve for x
    x = 2,498,961.18/1,841.67
  6. Step 6: Final answer
    x = 1,356.90

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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.