Home / 5,228.75-7,843.07-1,333.11

Finding the Fourth Proportional to 5,228.75, 7,843.07 and 1,333.11

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Solution

The fourth proportional to 5,228.75, 7,843.07 and 1,333.11 is: 1,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.75 : 7,843.07 = 1,333.11 : x
  2. Step 2: Convert to fraction form
    5,228.75/7,843.07 = 1,333.11/x
  3. Step 3: Cross multiply
    5,228.75x = 7,843.07 × 1,333.11
  4. Step 4: Simplify right side
    5,228.75x = 10,455,668.38
  5. Step 5: Solve for x
    x = 10,455,668.38/5,228.75
  6. Step 6: Final answer
    x = 1,999.65

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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.