Home / 3,933.33-5,428.77-2,255.87

Finding the Fourth Proportional to 3,933.33, 5,428.77 and 2,255.87

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Solution

The fourth proportional to 3,933.33, 5,428.77 and 2,255.87 is: 3,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.33 : 5,428.77 = 2,255.87 : x
  2. Step 2: Convert to fraction form
    3,933.33/5,428.77 = 2,255.87/x
  3. Step 3: Cross multiply
    3,933.33x = 5,428.77 × 2,255.87
  4. Step 4: Simplify right side
    3,933.33x = 12,246,573.96
  5. Step 5: Solve for x
    x = 12,246,573.96/3,933.33
  6. Step 6: Final answer
    x = 3,113.54

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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.