Home / 3,938.31-5,908.32-1,306.62

Finding the Fourth Proportional to 3,938.31, 5,908.32 and 1,306.62

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Solution

The fourth proportional to 3,938.31, 5,908.32 and 1,306.62 is: 1,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.31 : 5,908.32 = 1,306.62 : x
  2. Step 2: Convert to fraction form
    3,938.31/5,908.32 = 1,306.62/x
  3. Step 3: Cross multiply
    3,938.31x = 5,908.32 × 1,306.62
  4. Step 4: Simplify right side
    3,938.31x = 7,719,929.08
  5. Step 5: Solve for x
    x = 7,719,929.08/3,938.31
  6. Step 6: Final answer
    x = 1,960.21

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