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Finding the Fourth Proportional to 3,170.00, 4,375.16 and 2,638.17

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Solution

The fourth proportional to 3,170.00, 4,375.16 and 2,638.17 is: 3,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.00 : 4,375.16 = 2,638.17 : x
  2. Step 2: Convert to fraction form
    3,170.00/4,375.16 = 2,638.17/x
  3. Step 3: Cross multiply
    3,170.00x = 4,375.16 × 2,638.17
  4. Step 4: Simplify right side
    3,170.00x = 11,542,412.56
  5. Step 5: Solve for x
    x = 11,542,412.56/3,170.00
  6. Step 6: Final answer
    x = 3,641.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.