Home / 3,998.11-5,519.04-2,505.68

Finding the Fourth Proportional to 3,998.11, 5,519.04 and 2,505.68

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Solution

The fourth proportional to 3,998.11, 5,519.04 and 2,505.68 is: 3,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998.11 : 5,519.04 = 2,505.68 : x
  2. Step 2: Convert to fraction form
    3,998.11/5,519.04 = 2,505.68/x
  3. Step 3: Cross multiply
    3,998.11x = 5,519.04 × 2,505.68
  4. Step 4: Simplify right side
    3,998.11x = 13,828,935.62
  5. Step 5: Solve for x
    x = 13,828,935.62/3,998.11
  6. Step 6: Final answer
    x = 3,458.87

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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.