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Finding the Fourth Proportional to 4,761.54, 7,142.30 and 1,474.56

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Solution

The fourth proportional to 4,761.54, 7,142.30 and 1,474.56 is: 2,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.54 : 7,142.30 = 1,474.56 : x
  2. Step 2: Convert to fraction form
    4,761.54/7,142.30 = 1,474.56/x
  3. Step 3: Cross multiply
    4,761.54x = 7,142.30 × 1,474.56
  4. Step 4: Simplify right side
    4,761.54x = 10,531,742.52
  5. Step 5: Solve for x
    x = 10,531,742.52/4,761.54
  6. Step 6: Final answer
    x = 2,211.84

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