Home / 3,311.92-4,964.62-1,581.76

Finding the Fourth Proportional to 3,311.92, 4,964.62 and 1,581.76

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Solution

The fourth proportional to 3,311.92, 4,964.62 and 1,581.76 is: 2,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.92 : 4,964.62 = 1,581.76 : x
  2. Step 2: Convert to fraction form
    3,311.92/4,964.62 = 1,581.76/x
  3. Step 3: Cross multiply
    3,311.92x = 4,964.62 × 1,581.76
  4. Step 4: Simplify right side
    3,311.92x = 7,852,837.33
  5. Step 5: Solve for x
    x = 7,852,837.33/3,311.92
  6. Step 6: Final answer
    x = 2,371.08

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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.