Home / 5,571.20-8,340.60-3,378.80

Finding the Fourth Proportional to 5,571.20, 8,340.60 and 3,378.80

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Solution

The fourth proportional to 5,571.20, 8,340.60 and 3,378.80 is: 5,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.20 : 8,340.60 = 3,378.80 : x
  2. Step 2: Convert to fraction form
    5,571.20/8,340.60 = 3,378.80/x
  3. Step 3: Cross multiply
    5,571.20x = 8,340.60 × 3,378.80
  4. Step 4: Simplify right side
    5,571.20x = 28,181,219.28
  5. Step 5: Solve for x
    x = 28,181,219.28/5,571.20
  6. Step 6: Final answer
    x = 5,058.38

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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.