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Finding the Fourth Proportional to 3,690.90, 5,544.45 and 2,723.22

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Solution

The fourth proportional to 3,690.90, 5,544.45 and 2,723.22 is: 4,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.90 : 5,544.45 = 2,723.22 : x
  2. Step 2: Convert to fraction form
    3,690.90/5,544.45 = 2,723.22/x
  3. Step 3: Cross multiply
    3,690.90x = 5,544.45 × 2,723.22
  4. Step 4: Simplify right side
    3,690.90x = 15,098,757.13
  5. Step 5: Solve for x
    x = 15,098,757.13/3,690.90
  6. Step 6: Final answer
    x = 4,090.81

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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.