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Finding the Fourth Proportional to 2,113.22, 3,170.12 and 652.48

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Solution

The fourth proportional to 2,113.22, 3,170.12 and 652.48 is: 978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.22 : 3,170.12 = 652.48 : x
  2. Step 2: Convert to fraction form
    2,113.22/3,170.12 = 652.48/x
  3. Step 3: Cross multiply
    2,113.22x = 3,170.12 × 652.48
  4. Step 4: Simplify right side
    2,113.22x = 2,068,439.90
  5. Step 5: Solve for x
    x = 2,068,439.90/2,113.22
  6. Step 6: Final answer
    x = 978.81

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