Home / 6,239.09-8,608.46-3,879.96

Finding the Fourth Proportional to 6,239.09, 8,608.46 and 3,879.96

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Solution

The fourth proportional to 6,239.09, 8,608.46 and 3,879.96 is: 5,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.09 : 8,608.46 = 3,879.96 : x
  2. Step 2: Convert to fraction form
    6,239.09/8,608.46 = 3,879.96/x
  3. Step 3: Cross multiply
    6,239.09x = 8,608.46 × 3,879.96
  4. Step 4: Simplify right side
    6,239.09x = 33,400,461.06
  5. Step 5: Solve for x
    x = 33,400,461.06/6,239.09
  6. Step 6: Final answer
    x = 5,353.42

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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.