Home / 1,892.13-2,609.85-1,227.79

Finding the Fourth Proportional to 1,892.13, 2,609.85 and 1,227.79

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Solution

The fourth proportional to 1,892.13, 2,609.85 and 1,227.79 is: 1,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.13 : 2,609.85 = 1,227.79 : x
  2. Step 2: Convert to fraction form
    1,892.13/2,609.85 = 1,227.79/x
  3. Step 3: Cross multiply
    1,892.13x = 2,609.85 × 1,227.79
  4. Step 4: Simplify right side
    1,892.13x = 3,204,347.73
  5. Step 5: Solve for x
    x = 3,204,347.73/1,892.13
  6. Step 6: Final answer
    x = 1,693.51

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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.