Home / 4,290.94-5,922.26-3,115.43

Finding the Fourth Proportional to 4,290.94, 5,922.26 and 3,115.43

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Solution

The fourth proportional to 4,290.94, 5,922.26 and 3,115.43 is: 4,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.94 : 5,922.26 = 3,115.43 : x
  2. Step 2: Convert to fraction form
    4,290.94/5,922.26 = 3,115.43/x
  3. Step 3: Cross multiply
    4,290.94x = 5,922.26 × 3,115.43
  4. Step 4: Simplify right side
    4,290.94x = 18,450,392.70
  5. Step 5: Solve for x
    x = 18,450,392.70/4,290.94
  6. Step 6: Final answer
    x = 4,299.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.