Home / 3,864.36-5,333.61-2,185.84

Finding the Fourth Proportional to 3,864.36, 5,333.61 and 2,185.84

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Solution

The fourth proportional to 3,864.36, 5,333.61 and 2,185.84 is: 3,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.36 : 5,333.61 = 2,185.84 : x
  2. Step 2: Convert to fraction form
    3,864.36/5,333.61 = 2,185.84/x
  3. Step 3: Cross multiply
    3,864.36x = 5,333.61 × 2,185.84
  4. Step 4: Simplify right side
    3,864.36x = 11,658,396.80
  5. Step 5: Solve for x
    x = 11,658,396.80/3,864.36
  6. Step 6: Final answer
    x = 3,016.90

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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.