Home / 4,188.38-5,778.34-2,772.77

Finding the Fourth Proportional to 4,188.38, 5,778.34 and 2,772.77

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Solution

The fourth proportional to 4,188.38, 5,778.34 and 2,772.77 is: 3,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.38 : 5,778.34 = 2,772.77 : x
  2. Step 2: Convert to fraction form
    4,188.38/5,778.34 = 2,772.77/x
  3. Step 3: Cross multiply
    4,188.38x = 5,778.34 × 2,772.77
  4. Step 4: Simplify right side
    4,188.38x = 16,021,971.98
  5. Step 5: Solve for x
    x = 16,021,971.98/4,188.38
  6. Step 6: Final answer
    x = 3,825.34

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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.