Home / 3,405.22-5,105.40-2,105.44

Finding the Fourth Proportional to 3,405.22, 5,105.40 and 2,105.44

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Solution

The fourth proportional to 3,405.22, 5,105.40 and 2,105.44 is: 3,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.22 : 5,105.40 = 2,105.44 : x
  2. Step 2: Convert to fraction form
    3,405.22/5,105.40 = 2,105.44/x
  3. Step 3: Cross multiply
    3,405.22x = 5,105.40 × 2,105.44
  4. Step 4: Simplify right side
    3,405.22x = 10,749,113.38
  5. Step 5: Solve for x
    x = 10,749,113.38/3,405.22
  6. Step 6: Final answer
    x = 3,156.66

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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.