Home / 2,486.33-3,431.21-1,367.21

Finding the Fourth Proportional to 2,486.33, 3,431.21 and 1,367.21

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Solution

The fourth proportional to 2,486.33, 3,431.21 and 1,367.21 is: 1,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.33 : 3,431.21 = 1,367.21 : x
  2. Step 2: Convert to fraction form
    2,486.33/3,431.21 = 1,367.21/x
  3. Step 3: Cross multiply
    2,486.33x = 3,431.21 × 1,367.21
  4. Step 4: Simplify right side
    2,486.33x = 4,691,184.62
  5. Step 5: Solve for x
    x = 4,691,184.62/2,486.33
  6. Step 6: Final answer
    x = 1,886.79

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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.