Home / 2,222.46-3,065.76-1,382.85

Finding the Fourth Proportional to 2,222.46, 3,065.76 and 1,382.85

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Solution

The fourth proportional to 2,222.46, 3,065.76 and 1,382.85 is: 1,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.46 : 3,065.76 = 1,382.85 : x
  2. Step 2: Convert to fraction form
    2,222.46/3,065.76 = 1,382.85/x
  3. Step 3: Cross multiply
    2,222.46x = 3,065.76 × 1,382.85
  4. Step 4: Simplify right side
    2,222.46x = 4,239,486.22
  5. Step 5: Solve for x
    x = 4,239,486.22/2,222.46
  6. Step 6: Final answer
    x = 1,907.56

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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.