Home / 2,262.75-3,122.34-1,318.74

Finding the Fourth Proportional to 2,262.75, 3,122.34 and 1,318.74

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Solution

The fourth proportional to 2,262.75, 3,122.34 and 1,318.74 is: 1,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,262.75 : 3,122.34 = 1,318.74 : x
  2. Step 2: Convert to fraction form
    2,262.75/3,122.34 = 1,318.74/x
  3. Step 3: Cross multiply
    2,262.75x = 3,122.34 × 1,318.74
  4. Step 4: Simplify right side
    2,262.75x = 4,117,554.65
  5. Step 5: Solve for x
    x = 4,117,554.65/2,262.75
  6. Step 6: Final answer
    x = 1,819.71

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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.