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Finding the Fourth Proportional to 3,168.56, 4,372.50 and 1,771.28

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Solution

The fourth proportional to 3,168.56, 4,372.50 and 1,771.28 is: 2,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.56 : 4,372.50 = 1,771.28 : x
  2. Step 2: Convert to fraction form
    3,168.56/4,372.50 = 1,771.28/x
  3. Step 3: Cross multiply
    3,168.56x = 4,372.50 × 1,771.28
  4. Step 4: Simplify right side
    3,168.56x = 7,744,921.80
  5. Step 5: Solve for x
    x = 7,744,921.80/3,168.56
  6. Step 6: Final answer
    x = 2,444.30

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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.