Home / 2,745.23-3,787.11-2,639.15

Finding the Fourth Proportional to 2,745.23, 3,787.11 and 2,639.15

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Solution

The fourth proportional to 2,745.23, 3,787.11 and 2,639.15 is: 3,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.23 : 3,787.11 = 2,639.15 : x
  2. Step 2: Convert to fraction form
    2,745.23/3,787.11 = 2,639.15/x
  3. Step 3: Cross multiply
    2,745.23x = 3,787.11 × 2,639.15
  4. Step 4: Simplify right side
    2,745.23x = 9,994,732.42
  5. Step 5: Solve for x
    x = 9,994,732.42/2,745.23
  6. Step 6: Final answer
    x = 3,640.76

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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.