Home / 1,768.11-2,440.41-1,170.73

Finding the Fourth Proportional to 1,768.11, 2,440.41 and 1,170.73

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Solution

The fourth proportional to 1,768.11, 2,440.41 and 1,170.73 is: 1,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.11 : 2,440.41 = 1,170.73 : x
  2. Step 2: Convert to fraction form
    1,768.11/2,440.41 = 1,170.73/x
  3. Step 3: Cross multiply
    1,768.11x = 2,440.41 × 1,170.73
  4. Step 4: Simplify right side
    1,768.11x = 2,857,061.20
  5. Step 5: Solve for x
    x = 2,857,061.20/1,768.11
  6. Step 6: Final answer
    x = 1,615.88

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Double scale
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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.