Home / 3,174.05-4,380.20-1,776.80

Finding the Fourth Proportional to 3,174.05, 4,380.20 and 1,776.80

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Solution

The fourth proportional to 3,174.05, 4,380.20 and 1,776.80 is: 2,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.05 : 4,380.20 = 1,776.80 : x
  2. Step 2: Convert to fraction form
    3,174.05/4,380.20 = 1,776.80/x
  3. Step 3: Cross multiply
    3,174.05x = 4,380.20 × 1,776.80
  4. Step 4: Simplify right side
    3,174.05x = 7,782,708.58
  5. Step 5: Solve for x
    x = 7,782,708.58/3,174.05
  6. Step 6: Final answer
    x = 2,451.98

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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.