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Finding the Fourth Proportional to 1,896.26, 2,843.67 and 663.53

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Solution

The fourth proportional to 1,896.26, 2,843.67 and 663.53 is: 995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.26 : 2,843.67 = 663.53 : x
  2. Step 2: Convert to fraction form
    1,896.26/2,843.67 = 663.53/x
  3. Step 3: Cross multiply
    1,896.26x = 2,843.67 × 663.53
  4. Step 4: Simplify right side
    1,896.26x = 1,886,860.36
  5. Step 5: Solve for x
    x = 1,886,860.36/1,896.26
  6. Step 6: Final answer
    x = 995.04

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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.