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Finding the Fourth Proportional to 3,571.62, 5,360.58 and 2,990.22

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Solution

The fourth proportional to 3,571.62, 5,360.58 and 2,990.22 is: 4,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.62 : 5,360.58 = 2,990.22 : x
  2. Step 2: Convert to fraction form
    3,571.62/5,360.58 = 2,990.22/x
  3. Step 3: Cross multiply
    3,571.62x = 5,360.58 × 2,990.22
  4. Step 4: Simplify right side
    3,571.62x = 16,029,313.53
  5. Step 5: Solve for x
    x = 16,029,313.53/3,571.62
  6. Step 6: Final answer
    x = 4,487.97

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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.