Home / 3,288.30-4,930.01-1,207.20

Finding the Fourth Proportional to 3,288.30, 4,930.01 and 1,207.20

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Solution

The fourth proportional to 3,288.30, 4,930.01 and 1,207.20 is: 1,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.30 : 4,930.01 = 1,207.20 : x
  2. Step 2: Convert to fraction form
    3,288.30/4,930.01 = 1,207.20/x
  3. Step 3: Cross multiply
    3,288.30x = 4,930.01 × 1,207.20
  4. Step 4: Simplify right side
    3,288.30x = 5,951,508.07
  5. Step 5: Solve for x
    x = 5,951,508.07/3,288.30
  6. Step 6: Final answer
    x = 1,809.90

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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.