Home / 4,086.24-6,120.72-3,391.26

Finding the Fourth Proportional to 4,086.24, 6,120.72 and 3,391.26

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Solution

The fourth proportional to 4,086.24, 6,120.72 and 3,391.26 is: 5,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.24 : 6,120.72 = 3,391.26 : x
  2. Step 2: Convert to fraction form
    4,086.24/6,120.72 = 3,391.26/x
  3. Step 3: Cross multiply
    4,086.24x = 6,120.72 × 3,391.26
  4. Step 4: Simplify right side
    4,086.24x = 20,756,952.91
  5. Step 5: Solve for x
    x = 20,756,952.91/4,086.24
  6. Step 6: Final answer
    x = 5,079.72

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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.