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Finding the Fourth Proportional to 3,571.15, 5,381.11 and 2,936.11

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Solution

The fourth proportional to 3,571.15, 5,381.11 and 2,936.11 is: 4,424.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.15 : 5,381.11 = 2,936.11 : x
  2. Step 2: Convert to fraction form
    3,571.15/5,381.11 = 2,936.11/x
  3. Step 3: Cross multiply
    3,571.15x = 5,381.11 × 2,936.11
  4. Step 4: Simplify right side
    3,571.15x = 15,799,530.88
  5. Step 5: Solve for x
    x = 15,799,530.88/3,571.15
  6. Step 6: Final answer
    x = 4,424.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.