Home / 4,122.28-5,685.63-2,863.33

Finding the Fourth Proportional to 4,122.28, 5,685.63 and 2,863.33

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Solution

The fourth proportional to 4,122.28, 5,685.63 and 2,863.33 is: 3,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.28 : 5,685.63 = 2,863.33 : x
  2. Step 2: Convert to fraction form
    4,122.28/5,685.63 = 2,863.33/x
  3. Step 3: Cross multiply
    4,122.28x = 5,685.63 × 2,863.33
  4. Step 4: Simplify right side
    4,122.28x = 16,279,834.95
  5. Step 5: Solve for x
    x = 16,279,834.95/4,122.28
  6. Step 6: Final answer
    x = 3,949.23

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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.