Home / 2,207.12-3,310.68-746.28

Finding the Fourth Proportional to 2,207.12, 3,310.68 and 746.28

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Solution

The fourth proportional to 2,207.12, 3,310.68 and 746.28 is: 1,119.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.12 : 3,310.68 = 746.28 : x
  2. Step 2: Convert to fraction form
    2,207.12/3,310.68 = 746.28/x
  3. Step 3: Cross multiply
    2,207.12x = 3,310.68 × 746.28
  4. Step 4: Simplify right side
    2,207.12x = 2,470,694.27
  5. Step 5: Solve for x
    x = 2,470,694.27/2,207.12
  6. Step 6: Final answer
    x = 1,119.42

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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.