Home / 3,982.28-5,496.78-2,390.08

Finding the Fourth Proportional to 3,982.28, 5,496.78 and 2,390.08

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Solution

The fourth proportional to 3,982.28, 5,496.78 and 2,390.08 is: 3,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.28 : 5,496.78 = 2,390.08 : x
  2. Step 2: Convert to fraction form
    3,982.28/5,496.78 = 2,390.08/x
  3. Step 3: Cross multiply
    3,982.28x = 5,496.78 × 2,390.08
  4. Step 4: Simplify right side
    3,982.28x = 13,137,743.94
  5. Step 5: Solve for x
    x = 13,137,743.94/3,982.28
  6. Step 6: Final answer
    x = 3,299.05

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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.