Home / 5,571.18-7,687.71-3,213.18

Finding the Fourth Proportional to 5,571.18, 7,687.71 and 3,213.18

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Solution

The fourth proportional to 5,571.18, 7,687.71 and 3,213.18 is: 4,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.18 : 7,687.71 = 3,213.18 : x
  2. Step 2: Convert to fraction form
    5,571.18/7,687.71 = 3,213.18/x
  3. Step 3: Cross multiply
    5,571.18x = 7,687.71 × 3,213.18
  4. Step 4: Simplify right side
    5,571.18x = 24,701,996.02
  5. Step 5: Solve for x
    x = 24,701,996.02/5,571.18
  6. Step 6: Final answer
    x = 4,433.89

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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.