Home / 6,721.88-10,082.81-3,201.21

Finding the Fourth Proportional to 6,721.88, 10,082.81 and 3,201.21

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Solution

The fourth proportional to 6,721.88, 10,082.81 and 3,201.21 is: 4,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721.88 : 10,082.81 = 3,201.21 : x
  2. Step 2: Convert to fraction form
    6,721.88/10,082.81 = 3,201.21/x
  3. Step 3: Cross multiply
    6,721.88x = 10,082.81 × 3,201.21
  4. Step 4: Simplify right side
    6,721.88x = 32,277,194.84
  5. Step 5: Solve for x
    x = 32,277,194.84/6,721.88
  6. Step 6: Final answer
    x = 4,801.81

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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.