Home / 6,811.43-10,213.79-2,131.92

Finding the Fourth Proportional to 6,811.43, 10,213.79 and 2,131.92

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Solution

The fourth proportional to 6,811.43, 10,213.79 and 2,131.92 is: 3,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.43 : 10,213.79 = 2,131.92 : x
  2. Step 2: Convert to fraction form
    6,811.43/10,213.79 = 2,131.92/x
  3. Step 3: Cross multiply
    6,811.43x = 10,213.79 × 2,131.92
  4. Step 4: Simplify right side
    6,811.43x = 21,774,972.52
  5. Step 5: Solve for x
    x = 21,774,972.52/6,811.43
  6. Step 6: Final answer
    x = 3,196.83

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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.