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Finding the Fourth Proportional to 7,927.90, 11,891.81 and 2,004.79

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Solution

The fourth proportional to 7,927.90, 11,891.81 and 2,004.79 is: 3,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.90 : 11,891.81 = 2,004.79 : x
  2. Step 2: Convert to fraction form
    7,927.90/11,891.81 = 2,004.79/x
  3. Step 3: Cross multiply
    7,927.90x = 11,891.81 × 2,004.79
  4. Step 4: Simplify right side
    7,927.90x = 23,840,512.29
  5. Step 5: Solve for x
    x = 23,840,512.29/7,927.90
  6. Step 6: Final answer
    x = 3,007.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.