Home / 3,778.44-5,212.86-2,285.28

Finding the Fourth Proportional to 3,778.44, 5,212.86 and 2,285.28

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Solution

The fourth proportional to 3,778.44, 5,212.86 and 2,285.28 is: 3,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.44 : 5,212.86 = 2,285.28 : x
  2. Step 2: Convert to fraction form
    3,778.44/5,212.86 = 2,285.28/x
  3. Step 3: Cross multiply
    3,778.44x = 5,212.86 × 2,285.28
  4. Step 4: Simplify right side
    3,778.44x = 11,912,844.70
  5. Step 5: Solve for x
    x = 11,912,844.70/3,778.44
  6. Step 6: Final answer
    x = 3,152.85

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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.