Home / 3,151.26-4,722.57-1,200.78

Finding the Fourth Proportional to 3,151.26, 4,722.57 and 1,200.78

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Solution

The fourth proportional to 3,151.26, 4,722.57 and 1,200.78 is: 1,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.26 : 4,722.57 = 1,200.78 : x
  2. Step 2: Convert to fraction form
    3,151.26/4,722.57 = 1,200.78/x
  3. Step 3: Cross multiply
    3,151.26x = 4,722.57 × 1,200.78
  4. Step 4: Simplify right side
    3,151.26x = 5,670,767.60
  5. Step 5: Solve for x
    x = 5,670,767.60/3,151.26
  6. Step 6: Final answer
    x = 1,799.52

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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.