Home / 3,778.92-5,644.19-2,999.81

Finding the Fourth Proportional to 3,778.92, 5,644.19 and 2,999.81

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Solution

The fourth proportional to 3,778.92, 5,644.19 and 2,999.81 is: 4,480.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.92 : 5,644.19 = 2,999.81 : x
  2. Step 2: Convert to fraction form
    3,778.92/5,644.19 = 2,999.81/x
  3. Step 3: Cross multiply
    3,778.92x = 5,644.19 × 2,999.81
  4. Step 4: Simplify right side
    3,778.92x = 16,931,519.21
  5. Step 5: Solve for x
    x = 16,931,519.21/3,778.92
  6. Step 6: Final answer
    x = 4,480.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.