Home / 5,447.75-7,517.81-3,057.78

Finding the Fourth Proportional to 5,447.75, 7,517.81 and 3,057.78

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Solution

The fourth proportional to 5,447.75, 7,517.81 and 3,057.78 is: 4,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.75 : 7,517.81 = 3,057.78 : x
  2. Step 2: Convert to fraction form
    5,447.75/7,517.81 = 3,057.78/x
  3. Step 3: Cross multiply
    5,447.75x = 7,517.81 × 3,057.78
  4. Step 4: Simplify right side
    5,447.75x = 22,987,793.77
  5. Step 5: Solve for x
    x = 22,987,793.77/5,447.75
  6. Step 6: Final answer
    x = 4,219.68

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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.