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Finding the Fourth Proportional to 7,937.96, 11,906.96 and 2,391.32

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Solution

The fourth proportional to 7,937.96, 11,906.96 and 2,391.32 is: 3,586.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.96 : 11,906.96 = 2,391.32 : x
  2. Step 2: Convert to fraction form
    7,937.96/11,906.96 = 2,391.32/x
  3. Step 3: Cross multiply
    7,937.96x = 11,906.96 × 2,391.32
  4. Step 4: Simplify right side
    7,937.96x = 28,473,351.59
  5. Step 5: Solve for x
    x = 28,473,351.59/7,937.96
  6. Step 6: Final answer
    x = 3,586.99

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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.