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Finding the Fourth Proportional to 3,369.82, 5,054.22 and 1,615.90

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Solution

The fourth proportional to 3,369.82, 5,054.22 and 1,615.90 is: 2,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.82 : 5,054.22 = 1,615.90 : x
  2. Step 2: Convert to fraction form
    3,369.82/5,054.22 = 1,615.90/x
  3. Step 3: Cross multiply
    3,369.82x = 5,054.22 × 1,615.90
  4. Step 4: Simplify right side
    3,369.82x = 8,167,114.10
  5. Step 5: Solve for x
    x = 8,167,114.10/3,369.82
  6. Step 6: Final answer
    x = 2,423.61

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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.