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Finding the Fourth Proportional to 6,810.20, 10,215.60 and 3,848.60

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Solution

The fourth proportional to 6,810.20, 10,215.60 and 3,848.60 is: 5,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.20 : 10,215.60 = 3,848.60 : x
  2. Step 2: Convert to fraction form
    6,810.20/10,215.60 = 3,848.60/x
  3. Step 3: Cross multiply
    6,810.20x = 10,215.60 × 3,848.60
  4. Step 4: Simplify right side
    6,810.20x = 39,315,758.16
  5. Step 5: Solve for x
    x = 39,315,758.16/6,810.20
  6. Step 6: Final answer
    x = 5,773.07

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