Home / 2,788.94-3,848.37-2,223.20

Finding the Fourth Proportional to 2,788.94, 3,848.37 and 2,223.20

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Solution

The fourth proportional to 2,788.94, 3,848.37 and 2,223.20 is: 3,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.94 : 3,848.37 = 2,223.20 : x
  2. Step 2: Convert to fraction form
    2,788.94/3,848.37 = 2,223.20/x
  3. Step 3: Cross multiply
    2,788.94x = 3,848.37 × 2,223.20
  4. Step 4: Simplify right side
    2,788.94x = 8,555,705.80
  5. Step 5: Solve for x
    x = 8,555,705.80/2,788.94
  6. Step 6: Final answer
    x = 3,067.72

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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.