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Finding the Fourth Proportional to 6,685.83, 9,224.33 and 3,890.79

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Solution

The fourth proportional to 6,685.83, 9,224.33 and 3,890.79 is: 5,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,685.83 : 9,224.33 = 3,890.79 : x
  2. Step 2: Convert to fraction form
    6,685.83/9,224.33 = 3,890.79/x
  3. Step 3: Cross multiply
    6,685.83x = 9,224.33 × 3,890.79
  4. Step 4: Simplify right side
    6,685.83x = 35,889,911.47
  5. Step 5: Solve for x
    x = 35,889,911.47/6,685.83
  6. Step 6: Final answer
    x = 5,368.06

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