Home / 3,128.99-4,694.85-1,180.73

Finding the Fourth Proportional to 3,128.99, 4,694.85 and 1,180.73

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Solution

The fourth proportional to 3,128.99, 4,694.85 and 1,180.73 is: 1,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.99 : 4,694.85 = 1,180.73 : x
  2. Step 2: Convert to fraction form
    3,128.99/4,694.85 = 1,180.73/x
  3. Step 3: Cross multiply
    3,128.99x = 4,694.85 × 1,180.73
  4. Step 4: Simplify right side
    3,128.99x = 5,543,344.34
  5. Step 5: Solve for x
    x = 5,543,344.34/3,128.99
  6. Step 6: Final answer
    x = 1,771.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.