Home / 3,939.73-5,907.78-1,165.41

Finding the Fourth Proportional to 3,939.73, 5,907.78 and 1,165.41

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Solution

The fourth proportional to 3,939.73, 5,907.78 and 1,165.41 is: 1,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.73 : 5,907.78 = 1,165.41 : x
  2. Step 2: Convert to fraction form
    3,939.73/5,907.78 = 1,165.41/x
  3. Step 3: Cross multiply
    3,939.73x = 5,907.78 × 1,165.41
  4. Step 4: Simplify right side
    3,939.73x = 6,884,985.89
  5. Step 5: Solve for x
    x = 6,884,985.89/3,939.73
  6. Step 6: Final answer
    x = 1,747.58

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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.