Home / 1,039.08-1,557.82-422.44

Finding the Fourth Proportional to 1,039.08, 1,557.82 and 422.44

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Solution

The fourth proportional to 1,039.08, 1,557.82 and 422.44 is: 633.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.08 : 1,557.82 = 422.44 : x
  2. Step 2: Convert to fraction form
    1,039.08/1,557.82 = 422.44/x
  3. Step 3: Cross multiply
    1,039.08x = 1,557.82 × 422.44
  4. Step 4: Simplify right side
    1,039.08x = 658,085.48
  5. Step 5: Solve for x
    x = 658,085.48/1,039.08
  6. Step 6: Final answer
    x = 633.33

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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.