Home / 4,912.09-6,776.46-3,318.21

Finding the Fourth Proportional to 4,912.09, 6,776.46 and 3,318.21

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Solution

The fourth proportional to 4,912.09, 6,776.46 and 3,318.21 is: 4,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.09 : 6,776.46 = 3,318.21 : x
  2. Step 2: Convert to fraction form
    4,912.09/6,776.46 = 3,318.21/x
  3. Step 3: Cross multiply
    4,912.09x = 6,776.46 × 3,318.21
  4. Step 4: Simplify right side
    4,912.09x = 22,485,717.34
  5. Step 5: Solve for x
    x = 22,485,717.34/4,912.09
  6. Step 6: Final answer
    x = 4,577.63

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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.