Home / 2,778.68-3,833.66-1,834.94

Finding the Fourth Proportional to 2,778.68, 3,833.66 and 1,834.94

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Solution

The fourth proportional to 2,778.68, 3,833.66 and 1,834.94 is: 2,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.68 : 3,833.66 = 1,834.94 : x
  2. Step 2: Convert to fraction form
    2,778.68/3,833.66 = 1,834.94/x
  3. Step 3: Cross multiply
    2,778.68x = 3,833.66 × 1,834.94
  4. Step 4: Simplify right side
    2,778.68x = 7,034,536.08
  5. Step 5: Solve for x
    x = 7,034,536.08/2,778.68
  6. Step 6: Final answer
    x = 2,531.61

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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.