Home / 3,423.22-5,135.38-1,342.09

Finding the Fourth Proportional to 3,423.22, 5,135.38 and 1,342.09

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Solution

The fourth proportional to 3,423.22, 5,135.38 and 1,342.09 is: 2,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.22 : 5,135.38 = 1,342.09 : x
  2. Step 2: Convert to fraction form
    3,423.22/5,135.38 = 1,342.09/x
  3. Step 3: Cross multiply
    3,423.22x = 5,135.38 × 1,342.09
  4. Step 4: Simplify right side
    3,423.22x = 6,892,142.14
  5. Step 5: Solve for x
    x = 6,892,142.14/3,423.22
  6. Step 6: Final answer
    x = 2,013.35

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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.