Home / 3,930.38-5,894.82-1,157.18

Finding the Fourth Proportional to 3,930.38, 5,894.82 and 1,157.18

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Solution

The fourth proportional to 3,930.38, 5,894.82 and 1,157.18 is: 1,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.38 : 5,894.82 = 1,157.18 : x
  2. Step 2: Convert to fraction form
    3,930.38/5,894.82 = 1,157.18/x
  3. Step 3: Cross multiply
    3,930.38x = 5,894.82 × 1,157.18
  4. Step 4: Simplify right side
    3,930.38x = 6,821,367.81
  5. Step 5: Solve for x
    x = 6,821,367.81/3,930.38
  6. Step 6: Final answer
    x = 1,735.55

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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.