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Finding the Fourth Proportional to 7,878.38, 11,810.25 and 2,944.27

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Solution

The fourth proportional to 7,878.38, 11,810.25 and 2,944.27 is: 4,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878.38 : 11,810.25 = 2,944.27 : x
  2. Step 2: Convert to fraction form
    7,878.38/11,810.25 = 2,944.27/x
  3. Step 3: Cross multiply
    7,878.38x = 11,810.25 × 2,944.27
  4. Step 4: Simplify right side
    7,878.38x = 34,772,505.72
  5. Step 5: Solve for x
    x = 34,772,505.72/7,878.38
  6. Step 6: Final answer
    x = 4,413.66

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