Home / 6,808.88-10,212.78-2,128.84

Finding the Fourth Proportional to 6,808.88, 10,212.78 and 2,128.84

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Solution

The fourth proportional to 6,808.88, 10,212.78 and 2,128.84 is: 3,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.88 : 10,212.78 = 2,128.84 : x
  2. Step 2: Convert to fraction form
    6,808.88/10,212.78 = 2,128.84/x
  3. Step 3: Cross multiply
    6,808.88x = 10,212.78 × 2,128.84
  4. Step 4: Simplify right side
    6,808.88x = 21,741,374.58
  5. Step 5: Solve for x
    x = 21,741,374.58/6,808.88
  6. Step 6: Final answer
    x = 3,193.09

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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.