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Finding the Fourth Proportional to 3,800.92, 5,244.40 and 2,859

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Solution

The fourth proportional to 3,800.92, 5,244.40 and 2,859 is: 3,944.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.92 : 5,244.40 = 2,859 : x
  2. Step 2: Convert to fraction form
    3,800.92/5,244.40 = 2,859/x
  3. Step 3: Cross multiply
    3,800.92x = 5,244.40 × 2,859
  4. Step 4: Simplify right side
    3,800.92x = 14,993,739.60
  5. Step 5: Solve for x
    x = 14,993,739.60/3,800.92
  6. Step 6: Final answer
    x = 3,944.77

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1.5x scale

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.