Home / 3,322.87-4,979.07-2,087.90

Finding the Fourth Proportional to 3,322.87, 4,979.07 and 2,087.90

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Solution

The fourth proportional to 3,322.87, 4,979.07 and 2,087.90 is: 3,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.87 : 4,979.07 = 2,087.90 : x
  2. Step 2: Convert to fraction form
    3,322.87/4,979.07 = 2,087.90/x
  3. Step 3: Cross multiply
    3,322.87x = 4,979.07 × 2,087.90
  4. Step 4: Simplify right side
    3,322.87x = 10,395,808.03
  5. Step 5: Solve for x
    x = 10,395,808.03/3,322.87
  6. Step 6: Final answer
    x = 3,128.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.