Home / 4,936.75-6,815.82-3,171.43

Finding the Fourth Proportional to 4,936.75, 6,815.82 and 3,171.43

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Solution

The fourth proportional to 4,936.75, 6,815.82 and 3,171.43 is: 4,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.75 : 6,815.82 = 3,171.43 : x
  2. Step 2: Convert to fraction form
    4,936.75/6,815.82 = 3,171.43/x
  3. Step 3: Cross multiply
    4,936.75x = 6,815.82 × 3,171.43
  4. Step 4: Simplify right side
    4,936.75x = 21,615,896.02
  5. Step 5: Solve for x
    x = 21,615,896.02/4,936.75
  6. Step 6: Final answer
    x = 4,378.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.