Home / 6,519.12-8,994.42-3,998.64

Finding the Fourth Proportional to 6,519.12, 8,994.42 and 3,998.64

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Solution

The fourth proportional to 6,519.12, 8,994.42 and 3,998.64 is: 5,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.12 : 8,994.42 = 3,998.64 : x
  2. Step 2: Convert to fraction form
    6,519.12/8,994.42 = 3,998.64/x
  3. Step 3: Cross multiply
    6,519.12x = 8,994.42 × 3,998.64
  4. Step 4: Simplify right side
    6,519.12x = 35,965,447.59
  5. Step 5: Solve for x
    x = 35,965,447.59/6,519.12
  6. Step 6: Final answer
    x = 5,516.92

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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.