Home / 3,488.76-5,226.12-2,101.28

Finding the Fourth Proportional to 3,488.76, 5,226.12 and 2,101.28

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Solution

The fourth proportional to 3,488.76, 5,226.12 and 2,101.28 is: 3,147.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.76 : 5,226.12 = 2,101.28 : x
  2. Step 2: Convert to fraction form
    3,488.76/5,226.12 = 2,101.28/x
  3. Step 3: Cross multiply
    3,488.76x = 5,226.12 × 2,101.28
  4. Step 4: Simplify right side
    3,488.76x = 10,981,515.30
  5. Step 5: Solve for x
    x = 10,981,515.30/3,488.76
  6. Step 6: Final answer
    x = 3,147.68

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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.