Home / 1,375.24-2,062.46-401.12

Finding the Fourth Proportional to 1,375.24, 2,062.46 and 401.12

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Solution

The fourth proportional to 1,375.24, 2,062.46 and 401.12 is: 601.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375.24 : 2,062.46 = 401.12 : x
  2. Step 2: Convert to fraction form
    1,375.24/2,062.46 = 401.12/x
  3. Step 3: Cross multiply
    1,375.24x = 2,062.46 × 401.12
  4. Step 4: Simplify right side
    1,375.24x = 827,293.96
  5. Step 5: Solve for x
    x = 827,293.96/1,375.24
  6. Step 6: Final answer
    x = 601.56

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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.