Home / 1,424.26-2,133.82-1,338.49

Finding the Fourth Proportional to 1,424.26, 2,133.82 and 1,338.49

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Solution

The fourth proportional to 1,424.26, 2,133.82 and 1,338.49 is: 2,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.26 : 2,133.82 = 1,338.49 : x
  2. Step 2: Convert to fraction form
    1,424.26/2,133.82 = 1,338.49/x
  3. Step 3: Cross multiply
    1,424.26x = 2,133.82 × 1,338.49
  4. Step 4: Simplify right side
    1,424.26x = 2,856,089.41
  5. Step 5: Solve for x
    x = 2,856,089.41/1,424.26
  6. Step 6: Final answer
    x = 2,005.31

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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.