Home / 6,921.12-10,369.20-3,797.76

Finding the Fourth Proportional to 6,921.12, 10,369.20 and 3,797.76

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Solution

The fourth proportional to 6,921.12, 10,369.20 and 3,797.76 is: 5,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.12 : 10,369.20 = 3,797.76 : x
  2. Step 2: Convert to fraction form
    6,921.12/10,369.20 = 3,797.76/x
  3. Step 3: Cross multiply
    6,921.12x = 10,369.20 × 3,797.76
  4. Step 4: Simplify right side
    6,921.12x = 39,379,732.99
  5. Step 5: Solve for x
    x = 39,379,732.99/6,921.12
  6. Step 6: Final answer
    x = 5,689.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.