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Finding the Fourth Proportional to 4,750.86, 7,126.26 and 1,288.11

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Solution

The fourth proportional to 4,750.86, 7,126.26 and 1,288.11 is: 1,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.86 : 7,126.26 = 1,288.11 : x
  2. Step 2: Convert to fraction form
    4,750.86/7,126.26 = 1,288.11/x
  3. Step 3: Cross multiply
    4,750.86x = 7,126.26 × 1,288.11
  4. Step 4: Simplify right side
    4,750.86x = 9,179,406.77
  5. Step 5: Solve for x
    x = 9,179,406.77/4,750.86
  6. Step 6: Final answer
    x = 1,932.16

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