Home / 5,571.61-7,688.97-3,213.90

Finding the Fourth Proportional to 5,571.61, 7,688.97 and 3,213.90

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Solution

The fourth proportional to 5,571.61, 7,688.97 and 3,213.90 is: 4,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.61 : 7,688.97 = 3,213.90 : x
  2. Step 2: Convert to fraction form
    5,571.61/7,688.97 = 3,213.90/x
  3. Step 3: Cross multiply
    5,571.61x = 7,688.97 × 3,213.90
  4. Step 4: Simplify right side
    5,571.61x = 24,711,580.68
  5. Step 5: Solve for x
    x = 24,711,580.68/5,571.61
  6. Step 6: Final answer
    x = 4,435.27

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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.