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Finding the Fourth Proportional to 2,936.50, 4,404.75 and 884.50

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Solution

The fourth proportional to 2,936.50, 4,404.75 and 884.50 is: 1,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.50 : 4,404.75 = 884.50 : x
  2. Step 2: Convert to fraction form
    2,936.50/4,404.75 = 884.50/x
  3. Step 3: Cross multiply
    2,936.50x = 4,404.75 × 884.50
  4. Step 4: Simplify right side
    2,936.50x = 3,896,001.38
  5. Step 5: Solve for x
    x = 3,896,001.38/2,936.50
  6. Step 6: Final answer
    x = 1,326.75

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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.