Home / 2,653.20-3,974.40-2,001.96

Finding the Fourth Proportional to 2,653.20, 3,974.40 and 2,001.96

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Solution

The fourth proportional to 2,653.20, 3,974.40 and 2,001.96 is: 2,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.20 : 3,974.40 = 2,001.96 : x
  2. Step 2: Convert to fraction form
    2,653.20/3,974.40 = 2,001.96/x
  3. Step 3: Cross multiply
    2,653.20x = 3,974.40 × 2,001.96
  4. Step 4: Simplify right side
    2,653.20x = 7,956,589.82
  5. Step 5: Solve for x
    x = 7,956,589.82/2,653.20
  6. Step 6: Final answer
    x = 2,998.87

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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.