Home / 2,930.44-4,394.54-1,286.12

Finding the Fourth Proportional to 2,930.44, 4,394.54 and 1,286.12

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Solution

The fourth proportional to 2,930.44, 4,394.54 and 1,286.12 is: 1,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.44 : 4,394.54 = 1,286.12 : x
  2. Step 2: Convert to fraction form
    2,930.44/4,394.54 = 1,286.12/x
  3. Step 3: Cross multiply
    2,930.44x = 4,394.54 × 1,286.12
  4. Step 4: Simplify right side
    2,930.44x = 5,651,905.78
  5. Step 5: Solve for x
    x = 5,651,905.78/2,930.44
  6. Step 6: Final answer
    x = 1,928.69

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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.