Home / 2,789.94-4,182.66-1,910.28

Finding the Fourth Proportional to 2,789.94, 4,182.66 and 1,910.28

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Solution

The fourth proportional to 2,789.94, 4,182.66 and 1,910.28 is: 2,863.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.94 : 4,182.66 = 1,910.28 : x
  2. Step 2: Convert to fraction form
    2,789.94/4,182.66 = 1,910.28/x
  3. Step 3: Cross multiply
    2,789.94x = 4,182.66 × 1,910.28
  4. Step 4: Simplify right side
    2,789.94x = 7,990,051.74
  5. Step 5: Solve for x
    x = 7,990,051.74/2,789.94
  6. Step 6: Final answer
    x = 2,863.88

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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.