Home / 3,818.82-5,269.99-2,491.74

Finding the Fourth Proportional to 3,818.82, 5,269.99 and 2,491.74

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Solution

The fourth proportional to 3,818.82, 5,269.99 and 2,491.74 is: 3,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.82 : 5,269.99 = 2,491.74 : x
  2. Step 2: Convert to fraction form
    3,818.82/5,269.99 = 2,491.74/x
  3. Step 3: Cross multiply
    3,818.82x = 5,269.99 × 2,491.74
  4. Step 4: Simplify right side
    3,818.82x = 13,131,444.88
  5. Step 5: Solve for x
    x = 13,131,444.88/3,818.82
  6. Step 6: Final answer
    x = 3,438.61

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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.