Home / 3,160.73-4,741.26-1,212.78

Finding the Fourth Proportional to 3,160.73, 4,741.26 and 1,212.78

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Solution

The fourth proportional to 3,160.73, 4,741.26 and 1,212.78 is: 1,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.73 : 4,741.26 = 1,212.78 : x
  2. Step 2: Convert to fraction form
    3,160.73/4,741.26 = 1,212.78/x
  3. Step 3: Cross multiply
    3,160.73x = 4,741.26 × 1,212.78
  4. Step 4: Simplify right side
    3,160.73x = 5,750,105.30
  5. Step 5: Solve for x
    x = 5,750,105.30/3,160.73
  6. Step 6: Final answer
    x = 1,819.23

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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.