Home / 2,826.91-4,238.85-1,439.38

Finding the Fourth Proportional to 2,826.91, 4,238.85 and 1,439.38

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Solution

The fourth proportional to 2,826.91, 4,238.85 and 1,439.38 is: 2,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.91 : 4,238.85 = 1,439.38 : x
  2. Step 2: Convert to fraction form
    2,826.91/4,238.85 = 1,439.38/x
  3. Step 3: Cross multiply
    2,826.91x = 4,238.85 × 1,439.38
  4. Step 4: Simplify right side
    2,826.91x = 6,101,315.91
  5. Step 5: Solve for x
    x = 6,101,315.91/2,826.91
  6. Step 6: Final answer
    x = 2,158.30

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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.