Home / 4,919.76-7,378.04-1,631.97

Finding the Fourth Proportional to 4,919.76, 7,378.04 and 1,631.97

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Solution

The fourth proportional to 4,919.76, 7,378.04 and 1,631.97 is: 2,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.76 : 7,378.04 = 1,631.97 : x
  2. Step 2: Convert to fraction form
    4,919.76/7,378.04 = 1,631.97/x
  3. Step 3: Cross multiply
    4,919.76x = 7,378.04 × 1,631.97
  4. Step 4: Simplify right side
    4,919.76x = 12,040,739.94
  5. Step 5: Solve for x
    x = 12,040,739.94/4,919.76
  6. Step 6: Final answer
    x = 2,447.42

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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.