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Finding the Fourth Proportional to 6,861.27, 10,290.71 and 1,929.74

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Solution

The fourth proportional to 6,861.27, 10,290.71 and 1,929.74 is: 2,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.27 : 10,290.71 = 1,929.74 : x
  2. Step 2: Convert to fraction form
    6,861.27/10,290.71 = 1,929.74/x
  3. Step 3: Cross multiply
    6,861.27x = 10,290.71 × 1,929.74
  4. Step 4: Simplify right side
    6,861.27x = 19,858,394.72
  5. Step 5: Solve for x
    x = 19,858,394.72/6,861.27
  6. Step 6: Final answer
    x = 2,894.27

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