Home / 4,908.20-6,780.11-3,912.17

Finding the Fourth Proportional to 4,908.20, 6,780.11 and 3,912.17

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Solution

The fourth proportional to 4,908.20, 6,780.11 and 3,912.17 is: 5,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.20 : 6,780.11 = 3,912.17 : x
  2. Step 2: Convert to fraction form
    4,908.20/6,780.11 = 3,912.17/x
  3. Step 3: Cross multiply
    4,908.20x = 6,780.11 × 3,912.17
  4. Step 4: Simplify right side
    4,908.20x = 26,524,889.48
  5. Step 5: Solve for x
    x = 26,524,889.48/4,908.20
  6. Step 6: Final answer
    x = 5,404.20

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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.