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Finding the Fourth Proportional to 4,790.29, 7,183 and 2,191

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Solution

The fourth proportional to 4,790.29, 7,183 and 2,191 is: 3,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,790.29 : 7,183 = 2,191 : x
  2. Step 2: Convert to fraction form
    4,790.29/7,183 = 2,191/x
  3. Step 3: Cross multiply
    4,790.29x = 7,183 × 2,191
  4. Step 4: Simplify right side
    4,790.29x = 15,737,953
  5. Step 5: Solve for x
    x = 15,737,953/4,790.29
  6. Step 6: Final answer
    x = 3,285.39

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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.