Home / 5,571.50-7,689.80-3,213.32

Finding the Fourth Proportional to 5,571.50, 7,689.80 and 3,213.32

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Solution

The fourth proportional to 5,571.50, 7,689.80 and 3,213.32 is: 4,435.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.50 : 7,689.80 = 3,213.32 : x
  2. Step 2: Convert to fraction form
    5,571.50/7,689.80 = 3,213.32/x
  3. Step 3: Cross multiply
    5,571.50x = 7,689.80 × 3,213.32
  4. Step 4: Simplify right side
    5,571.50x = 24,709,757.72
  5. Step 5: Solve for x
    x = 24,709,757.72/5,571.50
  6. Step 6: Final answer
    x = 4,435.03

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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.