Home / 3,399.21-5,099.76-1,939.39

Finding the Fourth Proportional to 3,399.21, 5,099.76 and 1,939.39

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Solution

The fourth proportional to 3,399.21, 5,099.76 and 1,939.39 is: 2,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.21 : 5,099.76 = 1,939.39 : x
  2. Step 2: Convert to fraction form
    3,399.21/5,099.76 = 1,939.39/x
  3. Step 3: Cross multiply
    3,399.21x = 5,099.76 × 1,939.39
  4. Step 4: Simplify right side
    3,399.21x = 9,890,423.55
  5. Step 5: Solve for x
    x = 9,890,423.55/3,399.21
  6. Step 6: Final answer
    x = 2,909.62

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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.