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Finding the Fourth Proportional to 7,937.92, 11,908.92 and 3,007.60

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Solution

The fourth proportional to 7,937.92, 11,908.92 and 3,007.60 is: 4,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.92 : 11,908.92 = 3,007.60 : x
  2. Step 2: Convert to fraction form
    7,937.92/11,908.92 = 3,007.60/x
  3. Step 3: Cross multiply
    7,937.92x = 11,908.92 × 3,007.60
  4. Step 4: Simplify right side
    7,937.92x = 35,817,267.79
  5. Step 5: Solve for x
    x = 35,817,267.79/7,937.92
  6. Step 6: Final answer
    x = 4,512.17

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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.