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Finding the Fourth Proportional to 7,937.96, 11,906.91 and 2,391.71

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Solution

The fourth proportional to 7,937.96, 11,906.91 and 2,391.71 is: 3,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.96 : 11,906.91 = 2,391.71 : x
  2. Step 2: Convert to fraction form
    7,937.96/11,906.91 = 2,391.71/x
  3. Step 3: Cross multiply
    7,937.96x = 11,906.91 × 2,391.71
  4. Step 4: Simplify right side
    7,937.96x = 28,477,816.18
  5. Step 5: Solve for x
    x = 28,477,816.18/7,937.96
  6. Step 6: Final answer
    x = 3,587.55

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Similar ratio
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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.