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Finding the Fourth Proportional to 3,866.33, 5,795.39 and 2,939.60

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Solution

The fourth proportional to 3,866.33, 5,795.39 and 2,939.60 is: 4,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.33 : 5,795.39 = 2,939.60 : x
  2. Step 2: Convert to fraction form
    3,866.33/5,795.39 = 2,939.60/x
  3. Step 3: Cross multiply
    3,866.33x = 5,795.39 × 2,939.60
  4. Step 4: Simplify right side
    3,866.33x = 17,036,084.77
  5. Step 5: Solve for x
    x = 17,036,084.77/3,866.33
  6. Step 6: Final answer
    x = 4,406.27

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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.