Home / 4,143.62-5,718.28-2,255.34

Finding the Fourth Proportional to 4,143.62, 5,718.28 and 2,255.34

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Solution

The fourth proportional to 4,143.62, 5,718.28 and 2,255.34 is: 3,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.62 : 5,718.28 = 2,255.34 : x
  2. Step 2: Convert to fraction form
    4,143.62/5,718.28 = 2,255.34/x
  3. Step 3: Cross multiply
    4,143.62x = 5,718.28 × 2,255.34
  4. Step 4: Simplify right side
    4,143.62x = 12,896,665.62
  5. Step 5: Solve for x
    x = 12,896,665.62/4,143.62
  6. Step 6: Final answer
    x = 3,112.42

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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.