Home / 3,627.19-5,015.60-2,879.85

Finding the Fourth Proportional to 3,627.19, 5,015.60 and 2,879.85

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Solution

The fourth proportional to 3,627.19, 5,015.60 and 2,879.85 is: 3,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.19 : 5,015.60 = 2,879.85 : x
  2. Step 2: Convert to fraction form
    3,627.19/5,015.60 = 2,879.85/x
  3. Step 3: Cross multiply
    3,627.19x = 5,015.60 × 2,879.85
  4. Step 4: Simplify right side
    3,627.19x = 14,444,175.66
  5. Step 5: Solve for x
    x = 14,444,175.66/3,627.19
  6. Step 6: Final answer
    x = 3,982.19

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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.