Home / 4,143.82-5,718.49-2,255.42

Finding the Fourth Proportional to 4,143.82, 5,718.49 and 2,255.42

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Solution

The fourth proportional to 4,143.82, 5,718.49 and 2,255.42 is: 3,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.82 : 5,718.49 = 2,255.42 : x
  2. Step 2: Convert to fraction form
    4,143.82/5,718.49 = 2,255.42/x
  3. Step 3: Cross multiply
    4,143.82x = 5,718.49 × 2,255.42
  4. Step 4: Simplify right side
    4,143.82x = 12,897,596.72
  5. Step 5: Solve for x
    x = 12,897,596.72/4,143.82
  6. Step 6: Final answer
    x = 3,112.49

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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.