Home / 3,878.36-5,352.25-2,199.83

Finding the Fourth Proportional to 3,878.36, 5,352.25 and 2,199.83

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Solution

The fourth proportional to 3,878.36, 5,352.25 and 2,199.83 is: 3,035.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.36 : 5,352.25 = 2,199.83 : x
  2. Step 2: Convert to fraction form
    3,878.36/5,352.25 = 2,199.83/x
  3. Step 3: Cross multiply
    3,878.36x = 5,352.25 × 2,199.83
  4. Step 4: Simplify right side
    3,878.36x = 11,774,040.12
  5. Step 5: Solve for x
    x = 11,774,040.12/3,878.36
  6. Step 6: Final answer
    x = 3,035.83

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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.