Home / 3,853.94-5,318.44-2,085.56

Finding the Fourth Proportional to 3,853.94, 5,318.44 and 2,085.56

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Solution

The fourth proportional to 3,853.94, 5,318.44 and 2,085.56 is: 2,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.94 : 5,318.44 = 2,085.56 : x
  2. Step 2: Convert to fraction form
    3,853.94/5,318.44 = 2,085.56/x
  3. Step 3: Cross multiply
    3,853.94x = 5,318.44 × 2,085.56
  4. Step 4: Simplify right side
    3,853.94x = 11,091,893.92
  5. Step 5: Solve for x
    x = 11,091,893.92/3,853.94
  6. Step 6: Final answer
    x = 2,878.06

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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.