Home / 2,222.76-3,336.30-2,120.16

Finding the Fourth Proportional to 2,222.76, 3,336.30 and 2,120.16

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Solution

The fourth proportional to 2,222.76, 3,336.30 and 2,120.16 is: 3,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.76 : 3,336.30 = 2,120.16 : x
  2. Step 2: Convert to fraction form
    2,222.76/3,336.30 = 2,120.16/x
  3. Step 3: Cross multiply
    2,222.76x = 3,336.30 × 2,120.16
  4. Step 4: Simplify right side
    2,222.76x = 7,073,489.81
  5. Step 5: Solve for x
    x = 7,073,489.81/2,222.76
  6. Step 6: Final answer
    x = 3,182.30

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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.