Home / 5,519.20-8,271.60-2,229.60

Finding the Fourth Proportional to 5,519.20, 8,271.60 and 2,229.60

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Solution

The fourth proportional to 5,519.20, 8,271.60 and 2,229.60 is: 3,341.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.20 : 8,271.60 = 2,229.60 : x
  2. Step 2: Convert to fraction form
    5,519.20/8,271.60 = 2,229.60/x
  3. Step 3: Cross multiply
    5,519.20x = 8,271.60 × 2,229.60
  4. Step 4: Simplify right side
    5,519.20x = 18,442,359.36
  5. Step 5: Solve for x
    x = 18,442,359.36/5,519.20
  6. Step 6: Final answer
    x = 3,341.49

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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.