Home / 3,864.33-5,331.52-2,185.57

Finding the Fourth Proportional to 3,864.33, 5,331.52 and 2,185.57

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Solution

The fourth proportional to 3,864.33, 5,331.52 and 2,185.57 is: 3,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.33 : 5,331.52 = 2,185.57 : x
  2. Step 2: Convert to fraction form
    3,864.33/5,331.52 = 2,185.57/x
  3. Step 3: Cross multiply
    3,864.33x = 5,331.52 × 2,185.57
  4. Step 4: Simplify right side
    3,864.33x = 11,652,410.17
  5. Step 5: Solve for x
    x = 11,652,410.17/3,864.33
  6. Step 6: Final answer
    x = 3,015.38

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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.