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Finding the Fourth Proportional to 1,896.69, 2,843.21 and 1,505.66

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Solution

The fourth proportional to 1,896.69, 2,843.21 and 1,505.66 is: 2,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.69 : 2,843.21 = 1,505.66 : x
  2. Step 2: Convert to fraction form
    1,896.69/2,843.21 = 1,505.66/x
  3. Step 3: Cross multiply
    1,896.69x = 2,843.21 × 1,505.66
  4. Step 4: Simplify right side
    1,896.69x = 4,280,918.44
  5. Step 5: Solve for x
    x = 4,280,918.44/1,896.69
  6. Step 6: Final answer
    x = 2,257.05

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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.