Home / 2,849.11-3,928.70-2,472.86

Finding the Fourth Proportional to 2,849.11, 3,928.70 and 2,472.86

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Solution

The fourth proportional to 2,849.11, 3,928.70 and 2,472.86 is: 3,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.11 : 3,928.70 = 2,472.86 : x
  2. Step 2: Convert to fraction form
    2,849.11/3,928.70 = 2,472.86/x
  3. Step 3: Cross multiply
    2,849.11x = 3,928.70 × 2,472.86
  4. Step 4: Simplify right side
    2,849.11x = 9,715,141.09
  5. Step 5: Solve for x
    x = 9,715,141.09/2,849.11
  6. Step 6: Final answer
    x = 3,409.89

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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.