Home / 3,954.15-5,455.26-2,274.75

Finding the Fourth Proportional to 3,954.15, 5,455.26 and 2,274.75

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Solution

The fourth proportional to 3,954.15, 5,455.26 and 2,274.75 is: 3,138.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.15 : 5,455.26 = 2,274.75 : x
  2. Step 2: Convert to fraction form
    3,954.15/5,455.26 = 2,274.75/x
  3. Step 3: Cross multiply
    3,954.15x = 5,455.26 × 2,274.75
  4. Step 4: Simplify right side
    3,954.15x = 12,409,352.69
  5. Step 5: Solve for x
    x = 12,409,352.69/3,954.15
  6. Step 6: Final answer
    x = 3,138.31

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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.