Home / 7,221.75-10,825.33-2,842.28

Finding the Fourth Proportional to 7,221.75, 10,825.33 and 2,842.28

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Solution

The fourth proportional to 7,221.75, 10,825.33 and 2,842.28 is: 4,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.75 : 10,825.33 = 2,842.28 : x
  2. Step 2: Convert to fraction form
    7,221.75/10,825.33 = 2,842.28/x
  3. Step 3: Cross multiply
    7,221.75x = 10,825.33 × 2,842.28
  4. Step 4: Simplify right side
    7,221.75x = 30,768,618.95
  5. Step 5: Solve for x
    x = 30,768,618.95/7,221.75
  6. Step 6: Final answer
    x = 4,260.55

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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.