Home / 2,919.88-4,379.04-1,995.28

Finding the Fourth Proportional to 2,919.88, 4,379.04 and 1,995.28

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Solution

The fourth proportional to 2,919.88, 4,379.04 and 1,995.28 is: 2,992.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.88 : 4,379.04 = 1,995.28 : x
  2. Step 2: Convert to fraction form
    2,919.88/4,379.04 = 1,995.28/x
  3. Step 3: Cross multiply
    2,919.88x = 4,379.04 × 1,995.28
  4. Step 4: Simplify right side
    2,919.88x = 8,737,410.93
  5. Step 5: Solve for x
    x = 8,737,410.93/2,919.88
  6. Step 6: Final answer
    x = 2,992.39

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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.