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Finding the Fourth Proportional to 5,228.43, 7,843.07 and 1,332.82

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Solution

The fourth proportional to 5,228.43, 7,843.07 and 1,332.82 is: 1,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.43 : 7,843.07 = 1,332.82 : x
  2. Step 2: Convert to fraction form
    5,228.43/7,843.07 = 1,332.82/x
  3. Step 3: Cross multiply
    5,228.43x = 7,843.07 × 1,332.82
  4. Step 4: Simplify right side
    5,228.43x = 10,453,400.56
  5. Step 5: Solve for x
    x = 10,453,400.56/5,228.43
  6. Step 6: Final answer
    x = 1,999.34

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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.