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Finding the Fourth Proportional to 7,195.71, 9,930.09 and 4,171.41

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Solution

The fourth proportional to 7,195.71, 9,930.09 and 4,171.41 is: 5,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.71 : 9,930.09 = 4,171.41 : x
  2. Step 2: Convert to fraction form
    7,195.71/9,930.09 = 4,171.41/x
  3. Step 3: Cross multiply
    7,195.71x = 9,930.09 × 4,171.41
  4. Step 4: Simplify right side
    7,195.71x = 41,422,506.33
  5. Step 5: Solve for x
    x = 41,422,506.33/7,195.71
  6. Step 6: Final answer
    x = 5,756.56

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