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Finding the Fourth Proportional to 3,112.76, 4,669.14 and 2,922.68

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Solution

The fourth proportional to 3,112.76, 4,669.14 and 2,922.68 is: 4,384.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.76 : 4,669.14 = 2,922.68 : x
  2. Step 2: Convert to fraction form
    3,112.76/4,669.14 = 2,922.68/x
  3. Step 3: Cross multiply
    3,112.76x = 4,669.14 × 2,922.68
  4. Step 4: Simplify right side
    3,112.76x = 13,646,402.10
  5. Step 5: Solve for x
    x = 13,646,402.10/3,112.76
  6. Step 6: Final answer
    x = 4,384.02

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