Home / 2,193.31-3,286.86-1,932.76

Finding the Fourth Proportional to 2,193.31, 3,286.86 and 1,932.76

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Solution

The fourth proportional to 2,193.31, 3,286.86 and 1,932.76 is: 2,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.31 : 3,286.86 = 1,932.76 : x
  2. Step 2: Convert to fraction form
    2,193.31/3,286.86 = 1,932.76/x
  3. Step 3: Cross multiply
    2,193.31x = 3,286.86 × 1,932.76
  4. Step 4: Simplify right side
    2,193.31x = 6,352,711.53
  5. Step 5: Solve for x
    x = 6,352,711.53/2,193.31
  6. Step 6: Final answer
    x = 2,896.40

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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.