Home / 3,933.74-5,430.26-2,812.73

Finding the Fourth Proportional to 3,933.74, 5,430.26 and 2,812.73

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Solution

The fourth proportional to 3,933.74, 5,430.26 and 2,812.73 is: 3,882.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.74 : 5,430.26 = 2,812.73 : x
  2. Step 2: Convert to fraction form
    3,933.74/5,430.26 = 2,812.73/x
  3. Step 3: Cross multiply
    3,933.74x = 5,430.26 × 2,812.73
  4. Step 4: Simplify right side
    3,933.74x = 15,273,813.99
  5. Step 5: Solve for x
    x = 15,273,813.99/3,933.74
  6. Step 6: Final answer
    x = 3,882.78

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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.