Home / 2,919.72-4,029.12-1,593.36

Finding the Fourth Proportional to 2,919.72, 4,029.12 and 1,593.36

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Solution

The fourth proportional to 2,919.72, 4,029.12 and 1,593.36 is: 2,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.72 : 4,029.12 = 1,593.36 : x
  2. Step 2: Convert to fraction form
    2,919.72/4,029.12 = 1,593.36/x
  3. Step 3: Cross multiply
    2,919.72x = 4,029.12 × 1,593.36
  4. Step 4: Simplify right side
    2,919.72x = 6,419,838.64
  5. Step 5: Solve for x
    x = 6,419,838.64/2,919.72
  6. Step 6: Final answer
    x = 2,198.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.