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Finding the Fourth Proportional to 7,919.91, 11,880.41 and 2,373.03

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Solution

The fourth proportional to 7,919.91, 11,880.41 and 2,373.03 is: 3,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.91 : 11,880.41 = 2,373.03 : x
  2. Step 2: Convert to fraction form
    7,919.91/11,880.41 = 2,373.03/x
  3. Step 3: Cross multiply
    7,919.91x = 11,880.41 × 2,373.03
  4. Step 4: Simplify right side
    7,919.91x = 28,192,557.48
  5. Step 5: Solve for x
    x = 28,192,557.48/7,919.91
  6. Step 6: Final answer
    x = 3,559.71

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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.