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Finding the Fourth Proportional to 7,179.54, 9,907.68 and 4,195.83

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Solution

The fourth proportional to 7,179.54, 9,907.68 and 4,195.83 is: 5,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.54 : 9,907.68 = 4,195.83 : x
  2. Step 2: Convert to fraction form
    7,179.54/9,907.68 = 4,195.83/x
  3. Step 3: Cross multiply
    7,179.54x = 9,907.68 × 4,195.83
  4. Step 4: Simplify right side
    7,179.54x = 41,570,940.97
  5. Step 5: Solve for x
    x = 41,570,940.97/7,179.54
  6. Step 6: Final answer
    x = 5,790.20

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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.