Home / 2,826.78-4,228.83-2,005.44

Finding the Fourth Proportional to 2,826.78, 4,228.83 and 2,005.44

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Solution

The fourth proportional to 2,826.78, 4,228.83 and 2,005.44 is: 3,000.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.78 : 4,228.83 = 2,005.44 : x
  2. Step 2: Convert to fraction form
    2,826.78/4,228.83 = 2,005.44/x
  3. Step 3: Cross multiply
    2,826.78x = 4,228.83 × 2,005.44
  4. Step 4: Simplify right side
    2,826.78x = 8,480,664.84
  5. Step 5: Solve for x
    x = 8,480,664.84/2,826.78
  6. Step 6: Final answer
    x = 3,000.11

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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.