Home / 3,818.82-5,269.94-2,140.30

Finding the Fourth Proportional to 3,818.82, 5,269.94 and 2,140.30

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Solution

The fourth proportional to 3,818.82, 5,269.94 and 2,140.30 is: 2,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.82 : 5,269.94 = 2,140.30 : x
  2. Step 2: Convert to fraction form
    3,818.82/5,269.94 = 2,140.30/x
  3. Step 3: Cross multiply
    3,818.82x = 5,269.94 × 2,140.30
  4. Step 4: Simplify right side
    3,818.82x = 11,279,252.58
  5. Step 5: Solve for x
    x = 11,279,252.58/3,818.82
  6. Step 6: Final answer
    x = 2,953.60

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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.