Home / 5,220.94-7,204.87-2,830.89

Finding the Fourth Proportional to 5,220.94, 7,204.87 and 2,830.89

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Solution

The fourth proportional to 5,220.94, 7,204.87 and 2,830.89 is: 3,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.94 : 7,204.87 = 2,830.89 : x
  2. Step 2: Convert to fraction form
    5,220.94/7,204.87 = 2,830.89/x
  3. Step 3: Cross multiply
    5,220.94x = 7,204.87 × 2,830.89
  4. Step 4: Simplify right side
    5,220.94x = 20,396,189.13
  5. Step 5: Solve for x
    x = 20,396,189.13/5,220.94
  6. Step 6: Final answer
    x = 3,906.61

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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.