Home / 6,121.05-8,445.84-4,229.64

Finding the Fourth Proportional to 6,121.05, 8,445.84 and 4,229.64

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Solution

The fourth proportional to 6,121.05, 8,445.84 and 4,229.64 is: 5,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.05 : 8,445.84 = 4,229.64 : x
  2. Step 2: Convert to fraction form
    6,121.05/8,445.84 = 4,229.64/x
  3. Step 3: Cross multiply
    6,121.05x = 8,445.84 × 4,229.64
  4. Step 4: Simplify right side
    6,121.05x = 35,722,862.70
  5. Step 5: Solve for x
    x = 35,722,862.70/6,121.05
  6. Step 6: Final answer
    x = 5,836.07

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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.