Home / 3,416.78-5,121.96-3,112.44

Finding the Fourth Proportional to 3,416.78, 5,121.96 and 3,112.44

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Solution

The fourth proportional to 3,416.78, 5,121.96 and 3,112.44 is: 4,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.78 : 5,121.96 = 3,112.44 : x
  2. Step 2: Convert to fraction form
    3,416.78/5,121.96 = 3,112.44/x
  3. Step 3: Cross multiply
    3,416.78x = 5,121.96 × 3,112.44
  4. Step 4: Simplify right side
    3,416.78x = 15,941,793.18
  5. Step 5: Solve for x
    x = 15,941,793.18/3,416.78
  6. Step 6: Final answer
    x = 4,665.74

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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.