Home / 2,486.43-3,727.49-1,392.39

Finding the Fourth Proportional to 2,486.43, 3,727.49 and 1,392.39

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Solution

The fourth proportional to 2,486.43, 3,727.49 and 1,392.39 is: 2,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.43 : 3,727.49 = 1,392.39 : x
  2. Step 2: Convert to fraction form
    2,486.43/3,727.49 = 1,392.39/x
  3. Step 3: Cross multiply
    2,486.43x = 3,727.49 × 1,392.39
  4. Step 4: Simplify right side
    2,486.43x = 5,190,112.84
  5. Step 5: Solve for x
    x = 5,190,112.84/2,486.43
  6. Step 6: Final answer
    x = 2,087.38

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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.