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Finding the Fourth Proportional to 7,960.39, 11,940.08 and 3,029.92

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Solution

The fourth proportional to 7,960.39, 11,940.08 and 3,029.92 is: 4,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.39 : 11,940.08 = 3,029.92 : x
  2. Step 2: Convert to fraction form
    7,960.39/11,940.08 = 3,029.92/x
  3. Step 3: Cross multiply
    7,960.39x = 11,940.08 × 3,029.92
  4. Step 4: Simplify right side
    7,960.39x = 36,177,442.19
  5. Step 5: Solve for x
    x = 36,177,442.19/7,960.39
  6. Step 6: Final answer
    x = 4,544.68

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1.5x scale

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.