Home / 3,183.86-4,394.28-2,005.32

Finding the Fourth Proportional to 3,183.86, 4,394.28 and 2,005.32

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Solution

The fourth proportional to 3,183.86, 4,394.28 and 2,005.32 is: 2,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.86 : 4,394.28 = 2,005.32 : x
  2. Step 2: Convert to fraction form
    3,183.86/4,394.28 = 2,005.32/x
  3. Step 3: Cross multiply
    3,183.86x = 4,394.28 × 2,005.32
  4. Step 4: Simplify right side
    3,183.86x = 8,811,937.57
  5. Step 5: Solve for x
    x = 8,811,937.57/3,183.86
  6. Step 6: Final answer
    x = 2,767.69

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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.