Home / 5,519.85-7,619.33-3,399.00

Finding the Fourth Proportional to 5,519.85, 7,619.33 and 3,399.00

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Solution

The fourth proportional to 5,519.85, 7,619.33 and 3,399.00 is: 4,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.85 : 7,619.33 = 3,399.00 : x
  2. Step 2: Convert to fraction form
    5,519.85/7,619.33 = 3,399.00/x
  3. Step 3: Cross multiply
    5,519.85x = 7,619.33 × 3,399.00
  4. Step 4: Simplify right side
    5,519.85x = 25,898,082.60
  5. Step 5: Solve for x
    x = 25,898,082.60/5,519.85
  6. Step 6: Final answer
    x = 4,691.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.