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Finding the Fourth Proportional to 6,626.90, 9,961.01 and 4,177.46

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Solution

The fourth proportional to 6,626.90, 9,961.01 and 4,177.46 is: 6,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.90 : 9,961.01 = 4,177.46 : x
  2. Step 2: Convert to fraction form
    6,626.90/9,961.01 = 4,177.46/x
  3. Step 3: Cross multiply
    6,626.90x = 9,961.01 × 4,177.46
  4. Step 4: Simplify right side
    6,626.90x = 41,611,650.14
  5. Step 5: Solve for x
    x = 41,611,650.14/6,626.90
  6. Step 6: Final answer
    x = 6,279.21

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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.