Home / 6,211.38-8,571.42-3,559.02

Finding the Fourth Proportional to 6,211.38, 8,571.42 and 3,559.02

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Solution

The fourth proportional to 6,211.38, 8,571.42 and 3,559.02 is: 4,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.38 : 8,571.42 = 3,559.02 : x
  2. Step 2: Convert to fraction form
    6,211.38/8,571.42 = 3,559.02/x
  3. Step 3: Cross multiply
    6,211.38x = 8,571.42 × 3,559.02
  4. Step 4: Simplify right side
    6,211.38x = 30,505,855.21
  5. Step 5: Solve for x
    x = 30,505,855.21/6,211.38
  6. Step 6: Final answer
    x = 4,911.28

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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.