Home / 3,809.24-5,713.44-1,212.38

Finding the Fourth Proportional to 3,809.24, 5,713.44 and 1,212.38

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Solution

The fourth proportional to 3,809.24, 5,713.44 and 1,212.38 is: 1,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.24 : 5,713.44 = 1,212.38 : x
  2. Step 2: Convert to fraction form
    3,809.24/5,713.44 = 1,212.38/x
  3. Step 3: Cross multiply
    3,809.24x = 5,713.44 × 1,212.38
  4. Step 4: Simplify right side
    3,809.24x = 6,926,860.39
  5. Step 5: Solve for x
    x = 6,926,860.39/3,809.24
  6. Step 6: Final answer
    x = 1,818.44

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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.