Home / 3,865.84-5,787.96-2,012.92

Finding the Fourth Proportional to 3,865.84, 5,787.96 and 2,012.92

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Solution

The fourth proportional to 3,865.84, 5,787.96 and 2,012.92 is: 3,013.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,865.84 : 5,787.96 = 2,012.92 : x
  2. Step 2: Convert to fraction form
    3,865.84/5,787.96 = 2,012.92/x
  3. Step 3: Cross multiply
    3,865.84x = 5,787.96 × 2,012.92
  4. Step 4: Simplify right side
    3,865.84x = 11,650,700.44
  5. Step 5: Solve for x
    x = 11,650,700.44/3,865.84
  6. Step 6: Final answer
    x = 3,013.76

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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.