Home / 2,222.76-3,313.88-2,165.96

Finding the Fourth Proportional to 2,222.76, 3,313.88 and 2,165.96

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Solution

The fourth proportional to 2,222.76, 3,313.88 and 2,165.96 is: 3,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.76 : 3,313.88 = 2,165.96 : x
  2. Step 2: Convert to fraction form
    2,222.76/3,313.88 = 2,165.96/x
  3. Step 3: Cross multiply
    2,222.76x = 3,313.88 × 2,165.96
  4. Step 4: Simplify right side
    2,222.76x = 7,177,718.46
  5. Step 5: Solve for x
    x = 7,177,718.46/2,222.76
  6. Step 6: Final answer
    x = 3,229.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.