Home / 5,453.20-8,179.80-4,286.80

Finding the Fourth Proportional to 5,453.20, 8,179.80 and 4,286.80

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Solution

The fourth proportional to 5,453.20, 8,179.80 and 4,286.80 is: 6,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.20 : 8,179.80 = 4,286.80 : x
  2. Step 2: Convert to fraction form
    5,453.20/8,179.80 = 4,286.80/x
  3. Step 3: Cross multiply
    5,453.20x = 8,179.80 × 4,286.80
  4. Step 4: Simplify right side
    5,453.20x = 35,065,166.64
  5. Step 5: Solve for x
    x = 35,065,166.64/5,453.20
  6. Step 6: Final answer
    x = 6,430.20

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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.