Home / 1,583.91-2,186.55-1,212.44

Finding the Fourth Proportional to 1,583.91, 2,186.55 and 1,212.44

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Solution

The fourth proportional to 1,583.91, 2,186.55 and 1,212.44 is: 1,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.91 : 2,186.55 = 1,212.44 : x
  2. Step 2: Convert to fraction form
    1,583.91/2,186.55 = 1,212.44/x
  3. Step 3: Cross multiply
    1,583.91x = 2,186.55 × 1,212.44
  4. Step 4: Simplify right side
    1,583.91x = 2,651,049.75
  5. Step 5: Solve for x
    x = 2,651,049.75/1,583.91
  6. Step 6: Final answer
    x = 1,673.74

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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.