Home / 5,557.97-7,671.77-3,879.38

Finding the Fourth Proportional to 5,557.97, 7,671.77 and 3,879.38

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Solution

The fourth proportional to 5,557.97, 7,671.77 and 3,879.38 is: 5,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.97 : 7,671.77 = 3,879.38 : x
  2. Step 2: Convert to fraction form
    5,557.97/7,671.77 = 3,879.38/x
  3. Step 3: Cross multiply
    5,557.97x = 7,671.77 × 3,879.38
  4. Step 4: Simplify right side
    5,557.97x = 29,761,653.35
  5. Step 5: Solve for x
    x = 29,761,653.35/5,557.97
  6. Step 6: Final answer
    x = 5,354.78

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1.5x scale

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.