Home / 3,679.89-5,519.81-1,488.59

Finding the Fourth Proportional to 3,679.89, 5,519.81 and 1,488.59

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Solution

The fourth proportional to 3,679.89, 5,519.81 and 1,488.59 is: 2,232.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.89 : 5,519.81 = 1,488.59 : x
  2. Step 2: Convert to fraction form
    3,679.89/5,519.81 = 1,488.59/x
  3. Step 3: Cross multiply
    3,679.89x = 5,519.81 × 1,488.59
  4. Step 4: Simplify right side
    3,679.89x = 8,216,698.93
  5. Step 5: Solve for x
    x = 8,216,698.93/3,679.89
  6. Step 6: Final answer
    x = 2,232.87

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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.