Home / 3,287.56-4,932.78-1,439.14

Finding the Fourth Proportional to 3,287.56, 4,932.78 and 1,439.14

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Solution

The fourth proportional to 3,287.56, 4,932.78 and 1,439.14 is: 2,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.56 : 4,932.78 = 1,439.14 : x
  2. Step 2: Convert to fraction form
    3,287.56/4,932.78 = 1,439.14/x
  3. Step 3: Cross multiply
    3,287.56x = 4,932.78 × 1,439.14
  4. Step 4: Simplify right side
    3,287.56x = 7,098,961.01
  5. Step 5: Solve for x
    x = 7,098,961.01/3,287.56
  6. Step 6: Final answer
    x = 2,159.34

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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.