Home / 3,848.40-5,768.55-2,201.40

Finding the Fourth Proportional to 3,848.40, 5,768.55 and 2,201.40

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Solution

The fourth proportional to 3,848.40, 5,768.55 and 2,201.40 is: 3,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.40 : 5,768.55 = 2,201.40 : x
  2. Step 2: Convert to fraction form
    3,848.40/5,768.55 = 2,201.40/x
  3. Step 3: Cross multiply
    3,848.40x = 5,768.55 × 2,201.40
  4. Step 4: Simplify right side
    3,848.40x = 12,698,885.97
  5. Step 5: Solve for x
    x = 12,698,885.97/3,848.40
  6. Step 6: Final answer
    x = 3,299.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.