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Finding the Fourth Proportional to 2,879.22, 3,972.81 and 2,093.58

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Solution

The fourth proportional to 2,879.22, 3,972.81 and 2,093.58 is: 2,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.22 : 3,972.81 = 2,093.58 : x
  2. Step 2: Convert to fraction form
    2,879.22/3,972.81 = 2,093.58/x
  3. Step 3: Cross multiply
    2,879.22x = 3,972.81 × 2,093.58
  4. Step 4: Simplify right side
    2,879.22x = 8,317,395.56
  5. Step 5: Solve for x
    x = 8,317,395.56/2,879.22
  6. Step 6: Final answer
    x = 2,888.77

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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.