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Finding the Fourth Proportional to 6,839.68, 10,259.58 and 1,909.68

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Solution

The fourth proportional to 6,839.68, 10,259.58 and 1,909.68 is: 2,864.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,839.68 : 10,259.58 = 1,909.68 : x
  2. Step 2: Convert to fraction form
    6,839.68/10,259.58 = 1,909.68/x
  3. Step 3: Cross multiply
    6,839.68x = 10,259.58 × 1,909.68
  4. Step 4: Simplify right side
    6,839.68x = 19,592,514.73
  5. Step 5: Solve for x
    x = 19,592,514.73/6,839.68
  6. Step 6: Final answer
    x = 2,864.54

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