Home / 6,821.35-10,231.55-2,660.58

Finding the Fourth Proportional to 6,821.35, 10,231.55 and 2,660.58

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Solution

The fourth proportional to 6,821.35, 10,231.55 and 2,660.58 is: 3,990.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.35 : 10,231.55 = 2,660.58 : x
  2. Step 2: Convert to fraction form
    6,821.35/10,231.55 = 2,660.58/x
  3. Step 3: Cross multiply
    6,821.35x = 10,231.55 × 2,660.58
  4. Step 4: Simplify right side
    6,821.35x = 27,221,853.97
  5. Step 5: Solve for x
    x = 27,221,853.97/6,821.35
  6. Step 6: Final answer
    x = 3,990.69

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