Home / 2,856.05-3,942.62-1,677.19

Finding the Fourth Proportional to 2,856.05, 3,942.62 and 1,677.19

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Solution

The fourth proportional to 2,856.05, 3,942.62 and 1,677.19 is: 2,315.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.05 : 3,942.62 = 1,677.19 : x
  2. Step 2: Convert to fraction form
    2,856.05/3,942.62 = 1,677.19/x
  3. Step 3: Cross multiply
    2,856.05x = 3,942.62 × 1,677.19
  4. Step 4: Simplify right side
    2,856.05x = 6,612,517.17
  5. Step 5: Solve for x
    x = 6,612,517.17/2,856.05
  6. Step 6: Final answer
    x = 2,315.27

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Half scale
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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.