Home / 4,143.92-5,718.72-2,255.61

Finding the Fourth Proportional to 4,143.92, 5,718.72 and 2,255.61

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Solution

The fourth proportional to 4,143.92, 5,718.72 and 2,255.61 is: 3,112.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.92 : 5,718.72 = 2,255.61 : x
  2. Step 2: Convert to fraction form
    4,143.92/5,718.72 = 2,255.61/x
  3. Step 3: Cross multiply
    4,143.92x = 5,718.72 × 2,255.61
  4. Step 4: Simplify right side
    4,143.92x = 12,899,202.02
  5. Step 5: Solve for x
    x = 12,899,202.02/4,143.92
  6. Step 6: Final answer
    x = 3,112.80

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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.