Home / 1,427.53-2,141.40-605.71

Finding the Fourth Proportional to 1,427.53, 2,141.40 and 605.71

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Solution

The fourth proportional to 1,427.53, 2,141.40 and 605.71 is: 908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.53 : 2,141.40 = 605.71 : x
  2. Step 2: Convert to fraction form
    1,427.53/2,141.40 = 605.71/x
  3. Step 3: Cross multiply
    1,427.53x = 2,141.40 × 605.71
  4. Step 4: Simplify right side
    1,427.53x = 1,297,067.39
  5. Step 5: Solve for x
    x = 1,297,067.39/1,427.53
  6. Step 6: Final answer
    x = 908.61

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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.