Home / 2,219.75-3,323.46-1,440.65

Finding the Fourth Proportional to 2,219.75, 3,323.46 and 1,440.65

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Solution

The fourth proportional to 2,219.75, 3,323.46 and 1,440.65 is: 2,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.75 : 3,323.46 = 1,440.65 : x
  2. Step 2: Convert to fraction form
    2,219.75/3,323.46 = 1,440.65/x
  3. Step 3: Cross multiply
    2,219.75x = 3,323.46 × 1,440.65
  4. Step 4: Simplify right side
    2,219.75x = 4,787,942.65
  5. Step 5: Solve for x
    x = 4,787,942.65/2,219.75
  6. Step 6: Final answer
    x = 2,156.97

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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.