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Finding the Fourth Proportional to 3,866.38, 5,787.07 and 2,014.85

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Solution

The fourth proportional to 3,866.38, 5,787.07 and 2,014.85 is: 3,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.38 : 5,787.07 = 2,014.85 : x
  2. Step 2: Convert to fraction form
    3,866.38/5,787.07 = 2,014.85/x
  3. Step 3: Cross multiply
    3,866.38x = 5,787.07 × 2,014.85
  4. Step 4: Simplify right side
    3,866.38x = 11,660,077.99
  5. Step 5: Solve for x
    x = 11,660,077.99/3,866.38
  6. Step 6: Final answer
    x = 3,015.76

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1.5x scale

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.