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Finding the Fourth Proportional to 3,889.33, 5,834.75 and 2,133.38

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Solution

The fourth proportional to 3,889.33, 5,834.75 and 2,133.38 is: 3,200.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.33 : 5,834.75 = 2,133.38 : x
  2. Step 2: Convert to fraction form
    3,889.33/5,834.75 = 2,133.38/x
  3. Step 3: Cross multiply
    3,889.33x = 5,834.75 × 2,133.38
  4. Step 4: Simplify right side
    3,889.33x = 12,447,699.11
  5. Step 5: Solve for x
    x = 12,447,699.11/3,889.33
  6. Step 6: Final answer
    x = 3,200.47

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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.