Home / 4,138.50-5,721.93-3,954.90

Finding the Fourth Proportional to 4,138.50, 5,721.93 and 3,954.90

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Solution

The fourth proportional to 4,138.50, 5,721.93 and 3,954.90 is: 5,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.50 : 5,721.93 = 3,954.90 : x
  2. Step 2: Convert to fraction form
    4,138.50/5,721.93 = 3,954.90/x
  3. Step 3: Cross multiply
    4,138.50x = 5,721.93 × 3,954.90
  4. Step 4: Simplify right side
    4,138.50x = 22,629,660.96
  5. Step 5: Solve for x
    x = 22,629,660.96/4,138.50
  6. Step 6: Final answer
    x = 5,468.08

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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.