Home / 3,848.66-5,767.52-2,811.05

Finding the Fourth Proportional to 3,848.66, 5,767.52 and 2,811.05

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Solution

The fourth proportional to 3,848.66, 5,767.52 and 2,811.05 is: 4,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,848.66 : 5,767.52 = 2,811.05 : x
  2. Step 2: Convert to fraction form
    3,848.66/5,767.52 = 2,811.05/x
  3. Step 3: Cross multiply
    3,848.66x = 5,767.52 × 2,811.05
  4. Step 4: Simplify right side
    3,848.66x = 16,212,787.10
  5. Step 5: Solve for x
    x = 16,212,787.10/3,848.66
  6. Step 6: Final answer
    x = 4,212.58

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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.