Home / 3,772.91-5,206.85-2,179.86

Finding the Fourth Proportional to 3,772.91, 5,206.85 and 2,179.86

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Solution

The fourth proportional to 3,772.91, 5,206.85 and 2,179.86 is: 3,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.91 : 5,206.85 = 2,179.86 : x
  2. Step 2: Convert to fraction form
    3,772.91/5,206.85 = 2,179.86/x
  3. Step 3: Cross multiply
    3,772.91x = 5,206.85 × 2,179.86
  4. Step 4: Simplify right side
    3,772.91x = 11,350,181.79
  5. Step 5: Solve for x
    x = 11,350,181.79/3,772.91
  6. Step 6: Final answer
    x = 3,008.33

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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.