Home / 1,841.78-2,542.49-1,212.33

Finding the Fourth Proportional to 1,841.78, 2,542.49 and 1,212.33

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Solution

The fourth proportional to 1,841.78, 2,542.49 and 1,212.33 is: 1,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.78 : 2,542.49 = 1,212.33 : x
  2. Step 2: Convert to fraction form
    1,841.78/2,542.49 = 1,212.33/x
  3. Step 3: Cross multiply
    1,841.78x = 2,542.49 × 1,212.33
  4. Step 4: Simplify right side
    1,841.78x = 3,082,336.90
  5. Step 5: Solve for x
    x = 3,082,336.90/1,841.78
  6. Step 6: Final answer
    x = 1,673.56

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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.