Home / 5,371.94-7,409.54-3,781.90

Finding the Fourth Proportional to 5,371.94, 7,409.54 and 3,781.90

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Solution

The fourth proportional to 5,371.94, 7,409.54 and 3,781.90 is: 5,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.94 : 7,409.54 = 3,781.90 : x
  2. Step 2: Convert to fraction form
    5,371.94/7,409.54 = 3,781.90/x
  3. Step 3: Cross multiply
    5,371.94x = 7,409.54 × 3,781.90
  4. Step 4: Simplify right side
    5,371.94x = 28,022,139.33
  5. Step 5: Solve for x
    x = 28,022,139.33/5,371.94
  6. Step 6: Final answer
    x = 5,216.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.