Home / 7,207.38-10,811.07-3,919.59

Finding the Fourth Proportional to 7,207.38, 10,811.07 and 3,919.59

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Solution

The fourth proportional to 7,207.38, 10,811.07 and 3,919.59 is: 5,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207.38 : 10,811.07 = 3,919.59 : x
  2. Step 2: Convert to fraction form
    7,207.38/10,811.07 = 3,919.59/x
  3. Step 3: Cross multiply
    7,207.38x = 10,811.07 × 3,919.59
  4. Step 4: Simplify right side
    7,207.38x = 42,374,961.86
  5. Step 5: Solve for x
    x = 42,374,961.86/7,207.38
  6. Step 6: Final answer
    x = 5,879.39

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Similar ratio
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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.