Home / 2,808.91-3,872.19-1,966.96

Finding the Fourth Proportional to 2,808.91, 3,872.19 and 1,966.96

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Solution

The fourth proportional to 2,808.91, 3,872.19 and 1,966.96 is: 2,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.91 : 3,872.19 = 1,966.96 : x
  2. Step 2: Convert to fraction form
    2,808.91/3,872.19 = 1,966.96/x
  3. Step 3: Cross multiply
    2,808.91x = 3,872.19 × 1,966.96
  4. Step 4: Simplify right side
    2,808.91x = 7,616,442.84
  5. Step 5: Solve for x
    x = 7,616,442.84/2,808.91
  6. Step 6: Final answer
    x = 2,711.53

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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.