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Finding the Fourth Proportional to 7,215.84, 10,822.80 and 2,022.12

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Solution

The fourth proportional to 7,215.84, 10,822.80 and 2,022.12 is: 3,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.84 : 10,822.80 = 2,022.12 : x
  2. Step 2: Convert to fraction form
    7,215.84/10,822.80 = 2,022.12/x
  3. Step 3: Cross multiply
    7,215.84x = 10,822.80 × 2,022.12
  4. Step 4: Simplify right side
    7,215.84x = 21,885,000.34
  5. Step 5: Solve for x
    x = 21,885,000.34/7,215.84
  6. Step 6: Final answer
    x = 3,032.91

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