Home / 3,279.42-4,919.62-1,057.51

Finding the Fourth Proportional to 3,279.42, 4,919.62 and 1,057.51

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Solution

The fourth proportional to 3,279.42, 4,919.62 and 1,057.51 is: 1,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.42 : 4,919.62 = 1,057.51 : x
  2. Step 2: Convert to fraction form
    3,279.42/4,919.62 = 1,057.51/x
  3. Step 3: Cross multiply
    3,279.42x = 4,919.62 × 1,057.51
  4. Step 4: Simplify right side
    3,279.42x = 5,202,542.06
  5. Step 5: Solve for x
    x = 5,202,542.06/3,279.42
  6. Step 6: Final answer
    x = 1,586.42

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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.