Home / 3,222.08-4,441.20-2,172.32

Finding the Fourth Proportional to 3,222.08, 4,441.20 and 2,172.32

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Solution

The fourth proportional to 3,222.08, 4,441.20 and 2,172.32 is: 2,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.08 : 4,441.20 = 2,172.32 : x
  2. Step 2: Convert to fraction form
    3,222.08/4,441.20 = 2,172.32/x
  3. Step 3: Cross multiply
    3,222.08x = 4,441.20 × 2,172.32
  4. Step 4: Simplify right side
    3,222.08x = 9,647,707.58
  5. Step 5: Solve for x
    x = 9,647,707.58/3,222.08
  6. Step 6: Final answer
    x = 2,994.25

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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.