Home / 3,212.22-4,431.92-2,017.32

Finding the Fourth Proportional to 3,212.22, 4,431.92 and 2,017.32

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Solution

The fourth proportional to 3,212.22, 4,431.92 and 2,017.32 is: 2,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.22 : 4,431.92 = 2,017.32 : x
  2. Step 2: Convert to fraction form
    3,212.22/4,431.92 = 2,017.32/x
  3. Step 3: Cross multiply
    3,212.22x = 4,431.92 × 2,017.32
  4. Step 4: Simplify right side
    3,212.22x = 8,940,600.85
  5. Step 5: Solve for x
    x = 8,940,600.85/3,212.22
  6. Step 6: Final answer
    x = 2,783.31

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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.