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Finding the Fourth Proportional to 2,001, 3,000.74 and 960.71

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Solution

The fourth proportional to 2,001, 3,000.74 and 960.71 is: 1,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001 : 3,000.74 = 960.71 : x
  2. Step 2: Convert to fraction form
    2,001/3,000.74 = 960.71/x
  3. Step 3: Cross multiply
    2,001x = 3,000.74 × 960.71
  4. Step 4: Simplify right side
    2,001x = 2,882,821.12
  5. Step 5: Solve for x
    x = 2,882,821.12/2,001
  6. Step 6: Final answer
    x = 1,440.69

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Double scale
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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.