Home / 5,231.59-7,219.65-2,873.79

Finding the Fourth Proportional to 5,231.59, 7,219.65 and 2,873.79

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Solution

The fourth proportional to 5,231.59, 7,219.65 and 2,873.79 is: 3,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.59 : 7,219.65 = 2,873.79 : x
  2. Step 2: Convert to fraction form
    5,231.59/7,219.65 = 2,873.79/x
  3. Step 3: Cross multiply
    5,231.59x = 7,219.65 × 2,873.79
  4. Step 4: Simplify right side
    5,231.59x = 20,747,757.97
  5. Step 5: Solve for x
    x = 20,747,757.97/5,231.59
  6. Step 6: Final answer
    x = 3,965.86

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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.