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Finding the Fourth Proportional to 2,874.82, 4,309.07 and 1,639.52

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Solution

The fourth proportional to 2,874.82, 4,309.07 and 1,639.52 is: 2,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.82 : 4,309.07 = 1,639.52 : x
  2. Step 2: Convert to fraction form
    2,874.82/4,309.07 = 1,639.52/x
  3. Step 3: Cross multiply
    2,874.82x = 4,309.07 × 1,639.52
  4. Step 4: Simplify right side
    2,874.82x = 7,064,806.45
  5. Step 5: Solve for x
    x = 7,064,806.45/2,874.82
  6. Step 6: Final answer
    x = 2,457.48

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