Home / 3,288.16-4,932.21-2,119.93

Finding the Fourth Proportional to 3,288.16, 4,932.21 and 2,119.93

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Solution

The fourth proportional to 3,288.16, 4,932.21 and 2,119.93 is: 3,179.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.16 : 4,932.21 = 2,119.93 : x
  2. Step 2: Convert to fraction form
    3,288.16/4,932.21 = 2,119.93/x
  3. Step 3: Cross multiply
    3,288.16x = 4,932.21 × 2,119.93
  4. Step 4: Simplify right side
    3,288.16x = 10,455,939.95
  5. Step 5: Solve for x
    x = 10,455,939.95/3,288.16
  6. Step 6: Final answer
    x = 3,179.88

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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.