Home / 3,863.51-5,331.61-2,184.91

Finding the Fourth Proportional to 3,863.51, 5,331.61 and 2,184.91

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Solution

The fourth proportional to 3,863.51, 5,331.61 and 2,184.91 is: 3,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.51 : 5,331.61 = 2,184.91 : x
  2. Step 2: Convert to fraction form
    3,863.51/5,331.61 = 2,184.91/x
  3. Step 3: Cross multiply
    3,863.51x = 5,331.61 × 2,184.91
  4. Step 4: Simplify right side
    3,863.51x = 11,649,096.83
  5. Step 5: Solve for x
    x = 11,649,096.83/3,863.51
  6. Step 6: Final answer
    x = 3,015.16

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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.