Home / 1,768.11-2,634.40-1,668.75

Finding the Fourth Proportional to 1,768.11, 2,634.40 and 1,668.75

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Solution

The fourth proportional to 1,768.11, 2,634.40 and 1,668.75 is: 2,486.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.11 : 2,634.40 = 1,668.75 : x
  2. Step 2: Convert to fraction form
    1,768.11/2,634.40 = 1,668.75/x
  3. Step 3: Cross multiply
    1,768.11x = 2,634.40 × 1,668.75
  4. Step 4: Simplify right side
    1,768.11x = 4,396,146.66
  5. Step 5: Solve for x
    x = 4,396,146.66/1,768.11
  6. Step 6: Final answer
    x = 2,486.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.