Home / 2,747.91-4,122.63-1,105.62

Finding the Fourth Proportional to 2,747.91, 4,122.63 and 1,105.62

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Solution

The fourth proportional to 2,747.91, 4,122.63 and 1,105.62 is: 1,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.91 : 4,122.63 = 1,105.62 : x
  2. Step 2: Convert to fraction form
    2,747.91/4,122.63 = 1,105.62/x
  3. Step 3: Cross multiply
    2,747.91x = 4,122.63 × 1,105.62
  4. Step 4: Simplify right side
    2,747.91x = 4,558,062.18
  5. Step 5: Solve for x
    x = 4,558,062.18/2,747.91
  6. Step 6: Final answer
    x = 1,658.74

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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.