Home / 3,840.16-5,299.24-2,161.60

Finding the Fourth Proportional to 3,840.16, 5,299.24 and 2,161.60

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Solution

The fourth proportional to 3,840.16, 5,299.24 and 2,161.60 is: 2,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.16 : 5,299.24 = 2,161.60 : x
  2. Step 2: Convert to fraction form
    3,840.16/5,299.24 = 2,161.60/x
  3. Step 3: Cross multiply
    3,840.16x = 5,299.24 × 2,161.60
  4. Step 4: Simplify right side
    3,840.16x = 11,454,837.18
  5. Step 5: Solve for x
    x = 11,454,837.18/3,840.16
  6. Step 6: Final answer
    x = 2,982.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.