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Finding the Fourth Proportional to 3,858.87, 5,754.41 and 3,823.79

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Solution

The fourth proportional to 3,858.87, 5,754.41 and 3,823.79 is: 5,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.87 : 5,754.41 = 3,823.79 : x
  2. Step 2: Convert to fraction form
    3,858.87/5,754.41 = 3,823.79/x
  3. Step 3: Cross multiply
    3,858.87x = 5,754.41 × 3,823.79
  4. Step 4: Simplify right side
    3,858.87x = 22,003,636.20
  5. Step 5: Solve for x
    x = 22,003,636.20/3,858.87
  6. Step 6: Final answer
    x = 5,702.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.