Home / 7,828.39-11,745.15-2,898.42

Finding the Fourth Proportional to 7,828.39, 11,745.15 and 2,898.42

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Solution

The fourth proportional to 7,828.39, 11,745.15 and 2,898.42 is: 4,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.39 : 11,745.15 = 2,898.42 : x
  2. Step 2: Convert to fraction form
    7,828.39/11,745.15 = 2,898.42/x
  3. Step 3: Cross multiply
    7,828.39x = 11,745.15 × 2,898.42
  4. Step 4: Simplify right side
    7,828.39x = 34,042,318.94
  5. Step 5: Solve for x
    x = 34,042,318.94/7,828.39
  6. Step 6: Final answer
    x = 4,348.57

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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.