Home / 3,478.46-5,217.44-1,399.38

Finding the Fourth Proportional to 3,478.46, 5,217.44 and 1,399.38

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Solution

The fourth proportional to 3,478.46, 5,217.44 and 1,399.38 is: 2,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.46 : 5,217.44 = 1,399.38 : x
  2. Step 2: Convert to fraction form
    3,478.46/5,217.44 = 1,399.38/x
  3. Step 3: Cross multiply
    3,478.46x = 5,217.44 × 1,399.38
  4. Step 4: Simplify right side
    3,478.46x = 7,301,174.19
  5. Step 5: Solve for x
    x = 7,301,174.19/3,478.46
  6. Step 6: Final answer
    x = 2,098.97

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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.