Home / 1,584.70-2,183.01-1,211.54

Finding the Fourth Proportional to 1,584.70, 2,183.01 and 1,211.54

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Solution

The fourth proportional to 1,584.70, 2,183.01 and 1,211.54 is: 1,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.70 : 2,183.01 = 1,211.54 : x
  2. Step 2: Convert to fraction form
    1,584.70/2,183.01 = 1,211.54/x
  3. Step 3: Cross multiply
    1,584.70x = 2,183.01 × 1,211.54
  4. Step 4: Simplify right side
    1,584.70x = 2,644,818.48
  5. Step 5: Solve for x
    x = 2,644,818.48/1,584.70
  6. Step 6: Final answer
    x = 1,668.97

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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.