Home / 3,375.12-5,064.96-1,427.28

Finding the Fourth Proportional to 3,375.12, 5,064.96 and 1,427.28

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Solution

The fourth proportional to 3,375.12, 5,064.96 and 1,427.28 is: 2,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.12 : 5,064.96 = 1,427.28 : x
  2. Step 2: Convert to fraction form
    3,375.12/5,064.96 = 1,427.28/x
  3. Step 3: Cross multiply
    3,375.12x = 5,064.96 × 1,427.28
  4. Step 4: Simplify right side
    3,375.12x = 7,229,116.11
  5. Step 5: Solve for x
    x = 7,229,116.11/3,375.12
  6. Step 6: Final answer
    x = 2,141.88

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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.