Home / 3,174.42-4,380.84-1,777.20

Finding the Fourth Proportional to 3,174.42, 4,380.84 and 1,777.20

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Solution

The fourth proportional to 3,174.42, 4,380.84 and 1,777.20 is: 2,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.42 : 4,380.84 = 1,777.20 : x
  2. Step 2: Convert to fraction form
    3,174.42/4,380.84 = 1,777.20/x
  3. Step 3: Cross multiply
    3,174.42x = 4,380.84 × 1,777.20
  4. Step 4: Simplify right side
    3,174.42x = 7,785,628.85
  5. Step 5: Solve for x
    x = 7,785,628.85/3,174.42
  6. Step 6: Final answer
    x = 2,452.61

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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.