Home / 2,486.42-3,431.20-1,367.36

Finding the Fourth Proportional to 2,486.42, 3,431.20 and 1,367.36

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Solution

The fourth proportional to 2,486.42, 3,431.20 and 1,367.36 is: 1,886.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.42 : 3,431.20 = 1,367.36 : x
  2. Step 2: Convert to fraction form
    2,486.42/3,431.20 = 1,367.36/x
  3. Step 3: Cross multiply
    2,486.42x = 3,431.20 × 1,367.36
  4. Step 4: Simplify right side
    2,486.42x = 4,691,685.63
  5. Step 5: Solve for x
    x = 4,691,685.63/2,486.42
  6. Step 6: Final answer
    x = 1,886.92

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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.