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Finding the Fourth Proportional to 6,586, 9,879 and 1,722

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Solution

The fourth proportional to 6,586, 9,879 and 1,722 is: 2,583

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,586 : 9,879 = 1,722 : x
  2. Step 2: Convert to fraction form
    6,586/9,879 = 1,722/x
  3. Step 3: Cross multiply
    6,586x = 9,879 × 1,722
  4. Step 4: Simplify right side
    6,586x = 17,011,638
  5. Step 5: Solve for x
    x = 17,011,638/6,586
  6. Step 6: Final answer
    x = 2,583

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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.