Home / 3,984.89-5,977.35-1,519.83

Finding the Fourth Proportional to 3,984.89, 5,977.35 and 1,519.83

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Solution

The fourth proportional to 3,984.89, 5,977.35 and 1,519.83 is: 2,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.89 : 5,977.35 = 1,519.83 : x
  2. Step 2: Convert to fraction form
    3,984.89/5,977.35 = 1,519.83/x
  3. Step 3: Cross multiply
    3,984.89x = 5,977.35 × 1,519.83
  4. Step 4: Simplify right side
    3,984.89x = 9,084,555.85
  5. Step 5: Solve for x
    x = 9,084,555.85/3,984.89
  6. Step 6: Final answer
    x = 2,279.75

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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.