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Finding the Fourth Proportional to 4,979, 7,469.04 and 1,901

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Solution

The fourth proportional to 4,979, 7,469.04 and 1,901 is: 2,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979 : 7,469.04 = 1,901 : x
  2. Step 2: Convert to fraction form
    4,979/7,469.04 = 1,901/x
  3. Step 3: Cross multiply
    4,979x = 7,469.04 × 1,901
  4. Step 4: Simplify right side
    4,979x = 14,198,645.04
  5. Step 5: Solve for x
    x = 14,198,645.04/4,979
  6. Step 6: Final answer
    x = 2,851.71

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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.