Home / 3,818.37-5,269.25-2,139.77

Finding the Fourth Proportional to 3,818.37, 5,269.25 and 2,139.77

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Solution

The fourth proportional to 3,818.37, 5,269.25 and 2,139.77 is: 2,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.37 : 5,269.25 = 2,139.77 : x
  2. Step 2: Convert to fraction form
    3,818.37/5,269.25 = 2,139.77/x
  3. Step 3: Cross multiply
    3,818.37x = 5,269.25 × 2,139.77
  4. Step 4: Simplify right side
    3,818.37x = 11,274,971.96
  5. Step 5: Solve for x
    x = 11,274,971.96/3,818.37
  6. Step 6: Final answer
    x = 2,952.83

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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.