Home / 3,579.39-5,367.26-1,388.75

Finding the Fourth Proportional to 3,579.39, 5,367.26 and 1,388.75

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Solution

The fourth proportional to 3,579.39, 5,367.26 and 1,388.75 is: 2,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.39 : 5,367.26 = 1,388.75 : x
  2. Step 2: Convert to fraction form
    3,579.39/5,367.26 = 1,388.75/x
  3. Step 3: Cross multiply
    3,579.39x = 5,367.26 × 1,388.75
  4. Step 4: Simplify right side
    3,579.39x = 7,453,758.96
  5. Step 5: Solve for x
    x = 7,453,758.96/3,579.39
  6. Step 6: Final answer
    x = 2,082.41

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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.