Home / 3,160.69-4,743.19-1,108.69

Finding the Fourth Proportional to 3,160.69, 4,743.19 and 1,108.69

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Solution

The fourth proportional to 3,160.69, 4,743.19 and 1,108.69 is: 1,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.69 : 4,743.19 = 1,108.69 : x
  2. Step 2: Convert to fraction form
    3,160.69/4,743.19 = 1,108.69/x
  3. Step 3: Cross multiply
    3,160.69x = 4,743.19 × 1,108.69
  4. Step 4: Simplify right side
    3,160.69x = 5,258,716.85
  5. Step 5: Solve for x
    x = 5,258,716.85/3,160.69
  6. Step 6: Final answer
    x = 1,663.79

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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.