Home / 3,801.46-5,245.91-2,122.82

Finding the Fourth Proportional to 3,801.46, 5,245.91 and 2,122.82

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Solution

The fourth proportional to 3,801.46, 5,245.91 and 2,122.82 is: 2,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.46 : 5,245.91 = 2,122.82 : x
  2. Step 2: Convert to fraction form
    3,801.46/5,245.91 = 2,122.82/x
  3. Step 3: Cross multiply
    3,801.46x = 5,245.91 × 2,122.82
  4. Step 4: Simplify right side
    3,801.46x = 11,136,122.67
  5. Step 5: Solve for x
    x = 11,136,122.67/3,801.46
  6. Step 6: Final answer
    x = 2,929.43

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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.