Home / 2,481.12-3,422.96-2,211.84

Finding the Fourth Proportional to 2,481.12, 3,422.96 and 2,211.84

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Solution

The fourth proportional to 2,481.12, 3,422.96 and 2,211.84 is: 3,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.12 : 3,422.96 = 2,211.84 : x
  2. Step 2: Convert to fraction form
    2,481.12/3,422.96 = 2,211.84/x
  3. Step 3: Cross multiply
    2,481.12x = 3,422.96 × 2,211.84
  4. Step 4: Simplify right side
    2,481.12x = 7,571,039.85
  5. Step 5: Solve for x
    x = 7,571,039.85/2,481.12
  6. Step 6: Final answer
    x = 3,051.46

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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.