Home / 6,121.12-8,447.24-3,468.32

Finding the Fourth Proportional to 6,121.12, 8,447.24 and 3,468.32

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Solution

The fourth proportional to 6,121.12, 8,447.24 and 3,468.32 is: 4,786.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.12 : 8,447.24 = 3,468.32 : x
  2. Step 2: Convert to fraction form
    6,121.12/8,447.24 = 3,468.32/x
  3. Step 3: Cross multiply
    6,121.12x = 8,447.24 × 3,468.32
  4. Step 4: Simplify right side
    6,121.12x = 29,297,731.44
  5. Step 5: Solve for x
    x = 29,297,731.44/6,121.12
  6. Step 6: Final answer
    x = 4,786.34

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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.