Home / 3,938.30-5,907.46-1,165.02

Finding the Fourth Proportional to 3,938.30, 5,907.46 and 1,165.02

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Solution

The fourth proportional to 3,938.30, 5,907.46 and 1,165.02 is: 1,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.30 : 5,907.46 = 1,165.02 : x
  2. Step 2: Convert to fraction form
    3,938.30/5,907.46 = 1,165.02/x
  3. Step 3: Cross multiply
    3,938.30x = 5,907.46 × 1,165.02
  4. Step 4: Simplify right side
    3,938.30x = 6,882,309.05
  5. Step 5: Solve for x
    x = 6,882,309.05/3,938.30
  6. Step 6: Final answer
    x = 1,747.53

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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.