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Finding the Fourth Proportional to 7,927.88, 11,891.91 and 3,768.29

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Solution

The fourth proportional to 7,927.88, 11,891.91 and 3,768.29 is: 5,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.88 : 11,891.91 = 3,768.29 : x
  2. Step 2: Convert to fraction form
    7,927.88/11,891.91 = 3,768.29/x
  3. Step 3: Cross multiply
    7,927.88x = 11,891.91 × 3,768.29
  4. Step 4: Simplify right side
    7,927.88x = 44,812,106.07
  5. Step 5: Solve for x
    x = 44,812,106.07/7,927.88
  6. Step 6: Final answer
    x = 5,652.47

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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.