Home / 6,815.12-10,221.66-2,134.04

Finding the Fourth Proportional to 6,815.12, 10,221.66 and 2,134.04

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Solution

The fourth proportional to 6,815.12, 10,221.66 and 2,134.04 is: 3,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.12 : 10,221.66 = 2,134.04 : x
  2. Step 2: Convert to fraction form
    6,815.12/10,221.66 = 2,134.04/x
  3. Step 3: Cross multiply
    6,815.12x = 10,221.66 × 2,134.04
  4. Step 4: Simplify right side
    6,815.12x = 21,813,431.31
  5. Step 5: Solve for x
    x = 21,813,431.31/6,815.12
  6. Step 6: Final answer
    x = 3,200.74

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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.