Home / 1,889.91-2,608.29-1,103.85

Finding the Fourth Proportional to 1,889.91, 2,608.29 and 1,103.85

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Solution

The fourth proportional to 1,889.91, 2,608.29 and 1,103.85 is: 1,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.91 : 2,608.29 = 1,103.85 : x
  2. Step 2: Convert to fraction form
    1,889.91/2,608.29 = 1,103.85/x
  3. Step 3: Cross multiply
    1,889.91x = 2,608.29 × 1,103.85
  4. Step 4: Simplify right side
    1,889.91x = 2,879,160.92
  5. Step 5: Solve for x
    x = 2,879,160.92/1,889.91
  6. Step 6: Final answer
    x = 1,523.44

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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.