Home / 3,422.94-5,131.26-1,231.13

Finding the Fourth Proportional to 3,422.94, 5,131.26 and 1,231.13

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Solution

The fourth proportional to 3,422.94, 5,131.26 and 1,231.13 is: 1,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.94 : 5,131.26 = 1,231.13 : x
  2. Step 2: Convert to fraction form
    3,422.94/5,131.26 = 1,231.13/x
  3. Step 3: Cross multiply
    3,422.94x = 5,131.26 × 1,231.13
  4. Step 4: Simplify right side
    3,422.94x = 6,317,222.47
  5. Step 5: Solve for x
    x = 6,317,222.47/3,422.94
  6. Step 6: Final answer
    x = 1,845.55

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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.