Home / 3,863.19-5,331.38-2,184.66

Finding the Fourth Proportional to 3,863.19, 5,331.38 and 2,184.66

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Solution

The fourth proportional to 3,863.19, 5,331.38 and 2,184.66 is: 3,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.19 : 5,331.38 = 2,184.66 : x
  2. Step 2: Convert to fraction form
    3,863.19/5,331.38 = 2,184.66/x
  3. Step 3: Cross multiply
    3,863.19x = 5,331.38 × 2,184.66
  4. Step 4: Simplify right side
    3,863.19x = 11,647,241.71
  5. Step 5: Solve for x
    x = 11,647,241.71/3,863.19
  6. Step 6: Final answer
    x = 3,014.93

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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.