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Finding the Fourth Proportional to 2,815.06, 4,223.40 and 1,773.40

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Solution

The fourth proportional to 2,815.06, 4,223.40 and 1,773.40 is: 2,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.06 : 4,223.40 = 1,773.40 : x
  2. Step 2: Convert to fraction form
    2,815.06/4,223.40 = 1,773.40/x
  3. Step 3: Cross multiply
    2,815.06x = 4,223.40 × 1,773.40
  4. Step 4: Simplify right side
    2,815.06x = 7,489,777.56
  5. Step 5: Solve for x
    x = 7,489,777.56/2,815.06
  6. Step 6: Final answer
    x = 2,660.61

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