Home / 3,818.24-5,729.20-2,086.82

Finding the Fourth Proportional to 3,818.24, 5,729.20 and 2,086.82

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Solution

The fourth proportional to 3,818.24, 5,729.20 and 2,086.82 is: 3,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.24 : 5,729.20 = 2,086.82 : x
  2. Step 2: Convert to fraction form
    3,818.24/5,729.20 = 2,086.82/x
  3. Step 3: Cross multiply
    3,818.24x = 5,729.20 × 2,086.82
  4. Step 4: Simplify right side
    3,818.24x = 11,955,809.14
  5. Step 5: Solve for x
    x = 11,955,809.14/3,818.24
  6. Step 6: Final answer
    x = 3,131.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.