Home / 7,828.37-11,743.11-3,148.41

Finding the Fourth Proportional to 7,828.37, 11,743.11 and 3,148.41

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Solution

The fourth proportional to 7,828.37, 11,743.11 and 3,148.41 is: 4,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.37 : 11,743.11 = 3,148.41 : x
  2. Step 2: Convert to fraction form
    7,828.37/11,743.11 = 3,148.41/x
  3. Step 3: Cross multiply
    7,828.37x = 11,743.11 × 3,148.41
  4. Step 4: Simplify right side
    7,828.37x = 36,972,092.72
  5. Step 5: Solve for x
    x = 36,972,092.72/7,828.37
  6. Step 6: Final answer
    x = 4,722.83

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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.