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Finding the Fourth Proportional to 3,934.62, 5,905.58 and 1,988.19

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Solution

The fourth proportional to 3,934.62, 5,905.58 and 1,988.19 is: 2,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.62 : 5,905.58 = 1,988.19 : x
  2. Step 2: Convert to fraction form
    3,934.62/5,905.58 = 1,988.19/x
  3. Step 3: Cross multiply
    3,934.62x = 5,905.58 × 1,988.19
  4. Step 4: Simplify right side
    3,934.62x = 11,741,429.86
  5. Step 5: Solve for x
    x = 11,741,429.86/3,934.62
  6. Step 6: Final answer
    x = 2,984.13

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