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Finding the Fourth Proportional to 5,153.76, 7,727.34 and 3,396.72

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Solution

The fourth proportional to 5,153.76, 7,727.34 and 3,396.72 is: 5,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.76 : 7,727.34 = 3,396.72 : x
  2. Step 2: Convert to fraction form
    5,153.76/7,727.34 = 3,396.72/x
  3. Step 3: Cross multiply
    5,153.76x = 7,727.34 × 3,396.72
  4. Step 4: Simplify right side
    5,153.76x = 26,247,610.32
  5. Step 5: Solve for x
    x = 26,247,610.32/5,153.76
  6. Step 6: Final answer
    x = 5,092.91

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