Home / 6,982.08-9,635.82-3,998.86

Finding the Fourth Proportional to 6,982.08, 9,635.82 and 3,998.86

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Solution

The fourth proportional to 6,982.08, 9,635.82 and 3,998.86 is: 5,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,982.08 : 9,635.82 = 3,998.86 : x
  2. Step 2: Convert to fraction form
    6,982.08/9,635.82 = 3,998.86/x
  3. Step 3: Cross multiply
    6,982.08x = 9,635.82 × 3,998.86
  4. Step 4: Simplify right side
    6,982.08x = 38,532,295.17
  5. Step 5: Solve for x
    x = 38,532,295.17/6,982.08
  6. Step 6: Final answer
    x = 5,518.74

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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.