Home / 3,938.22-5,907.87-1,165.10

Finding the Fourth Proportional to 3,938.22, 5,907.87 and 1,165.10

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Solution

The fourth proportional to 3,938.22, 5,907.87 and 1,165.10 is: 1,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.22 : 5,907.87 = 1,165.10 : x
  2. Step 2: Convert to fraction form
    3,938.22/5,907.87 = 1,165.10/x
  3. Step 3: Cross multiply
    3,938.22x = 5,907.87 × 1,165.10
  4. Step 4: Simplify right side
    3,938.22x = 6,883,229.80
  5. Step 5: Solve for x
    x = 6,883,229.80/3,938.22
  6. Step 6: Final answer
    x = 1,747.80

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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.