Home / 3,679.56-5,519.88-1,488.42

Finding the Fourth Proportional to 3,679.56, 5,519.88 and 1,488.42

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Solution

The fourth proportional to 3,679.56, 5,519.88 and 1,488.42 is: 2,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.56 : 5,519.88 = 1,488.42 : x
  2. Step 2: Convert to fraction form
    3,679.56/5,519.88 = 1,488.42/x
  3. Step 3: Cross multiply
    3,679.56x = 5,519.88 × 1,488.42
  4. Step 4: Simplify right side
    3,679.56x = 8,215,899.79
  5. Step 5: Solve for x
    x = 8,215,899.79/3,679.56
  6. Step 6: Final answer
    x = 2,232.85

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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.