Home / 3,128.26-4,691.01-936.58

Finding the Fourth Proportional to 3,128.26, 4,691.01 and 936.58

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Solution

The fourth proportional to 3,128.26, 4,691.01 and 936.58 is: 1,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.26 : 4,691.01 = 936.58 : x
  2. Step 2: Convert to fraction form
    3,128.26/4,691.01 = 936.58/x
  3. Step 3: Cross multiply
    3,128.26x = 4,691.01 × 936.58
  4. Step 4: Simplify right side
    3,128.26x = 4,393,517.87
  5. Step 5: Solve for x
    x = 4,393,517.87/3,128.26
  6. Step 6: Final answer
    x = 1,404.46

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1.5x scale

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.