Home / 2,717.24-3,749.84-2,120.41

Finding the Fourth Proportional to 2,717.24, 3,749.84 and 2,120.41

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Solution

The fourth proportional to 2,717.24, 3,749.84 and 2,120.41 is: 2,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.24 : 3,749.84 = 2,120.41 : x
  2. Step 2: Convert to fraction form
    2,717.24/3,749.84 = 2,120.41/x
  3. Step 3: Cross multiply
    2,717.24x = 3,749.84 × 2,120.41
  4. Step 4: Simplify right side
    2,717.24x = 7,951,198.23
  5. Step 5: Solve for x
    x = 7,951,198.23/2,717.24
  6. Step 6: Final answer
    x = 2,926.20

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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.