Home / 2,786.19-3,844.81-1,667.74

Finding the Fourth Proportional to 2,786.19, 3,844.81 and 1,667.74

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Solution

The fourth proportional to 2,786.19, 3,844.81 and 1,667.74 is: 2,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.19 : 3,844.81 = 1,667.74 : x
  2. Step 2: Convert to fraction form
    2,786.19/3,844.81 = 1,667.74/x
  3. Step 3: Cross multiply
    2,786.19x = 3,844.81 × 1,667.74
  4. Step 4: Simplify right side
    2,786.19x = 6,412,143.43
  5. Step 5: Solve for x
    x = 6,412,143.43/2,786.19
  6. Step 6: Final answer
    x = 2,301.40

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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.