Home / 3,679.89-5,519.79-1,488.60

Finding the Fourth Proportional to 3,679.89, 5,519.79 and 1,488.60

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Solution

The fourth proportional to 3,679.89, 5,519.79 and 1,488.60 is: 2,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.89 : 5,519.79 = 1,488.60 : x
  2. Step 2: Convert to fraction form
    3,679.89/5,519.79 = 1,488.60/x
  3. Step 3: Cross multiply
    3,679.89x = 5,519.79 × 1,488.60
  4. Step 4: Simplify right side
    3,679.89x = 8,216,759.39
  5. Step 5: Solve for x
    x = 8,216,759.39/3,679.89
  6. Step 6: Final answer
    x = 2,232.88

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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.