Home / 2,786.24-4,179.28-1,141.55

Finding the Fourth Proportional to 2,786.24, 4,179.28 and 1,141.55

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Solution

The fourth proportional to 2,786.24, 4,179.28 and 1,141.55 is: 1,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.24 : 4,179.28 = 1,141.55 : x
  2. Step 2: Convert to fraction form
    2,786.24/4,179.28 = 1,141.55/x
  3. Step 3: Cross multiply
    2,786.24x = 4,179.28 × 1,141.55
  4. Step 4: Simplify right side
    2,786.24x = 4,770,862.54
  5. Step 5: Solve for x
    x = 4,770,862.54/2,786.24
  6. Step 6: Final answer
    x = 1,712.29

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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.