Home / 3,865.11-5,797.87-1,787.06

Finding the Fourth Proportional to 3,865.11, 5,797.87 and 1,787.06

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Solution

The fourth proportional to 3,865.11, 5,797.87 and 1,787.06 is: 2,680.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.11 : 5,797.87 = 1,787.06 : x
  2. Step 2: Convert to fraction form
    3,865.11/5,797.87 = 1,787.06/x
  3. Step 3: Cross multiply
    3,865.11x = 5,797.87 × 1,787.06
  4. Step 4: Simplify right side
    3,865.11x = 10,361,108.11
  5. Step 5: Solve for x
    x = 10,361,108.11/3,865.11
  6. Step 6: Final answer
    x = 2,680.68

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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.