Home / 3,212.23-4,422.57-2,798.05

Finding the Fourth Proportional to 3,212.23, 4,422.57 and 2,798.05

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Solution

The fourth proportional to 3,212.23, 4,422.57 and 2,798.05 is: 3,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.23 : 4,422.57 = 2,798.05 : x
  2. Step 2: Convert to fraction form
    3,212.23/4,422.57 = 2,798.05/x
  3. Step 3: Cross multiply
    3,212.23x = 4,422.57 × 2,798.05
  4. Step 4: Simplify right side
    3,212.23x = 12,374,571.99
  5. Step 5: Solve for x
    x = 12,374,571.99/3,212.23
  6. Step 6: Final answer
    x = 3,852.33

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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.