Home / 3,777.28-5,212.18-2,205.16

Finding the Fourth Proportional to 3,777.28, 5,212.18 and 2,205.16

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Solution

The fourth proportional to 3,777.28, 5,212.18 and 2,205.16 is: 3,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.28 : 5,212.18 = 2,205.16 : x
  2. Step 2: Convert to fraction form
    3,777.28/5,212.18 = 2,205.16/x
  3. Step 3: Cross multiply
    3,777.28x = 5,212.18 × 2,205.16
  4. Step 4: Simplify right side
    3,777.28x = 11,493,690.85
  5. Step 5: Solve for x
    x = 11,493,690.85/3,777.28
  6. Step 6: Final answer
    x = 3,042.85

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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.