Home / 5,179.75-7,152.26-4,222.80

Finding the Fourth Proportional to 5,179.75, 7,152.26 and 4,222.80

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Solution

The fourth proportional to 5,179.75, 7,152.26 and 4,222.80 is: 5,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.75 : 7,152.26 = 4,222.80 : x
  2. Step 2: Convert to fraction form
    5,179.75/7,152.26 = 4,222.80/x
  3. Step 3: Cross multiply
    5,179.75x = 7,152.26 × 4,222.80
  4. Step 4: Simplify right side
    5,179.75x = 30,202,563.53
  5. Step 5: Solve for x
    x = 30,202,563.53/5,179.75
  6. Step 6: Final answer
    x = 5,830.89

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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.