Home / 2,787.05-3,845.75-1,667.73

Finding the Fourth Proportional to 2,787.05, 3,845.75 and 1,667.73

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Solution

The fourth proportional to 2,787.05, 3,845.75 and 1,667.73 is: 2,301.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.05 : 3,845.75 = 1,667.73 : x
  2. Step 2: Convert to fraction form
    2,787.05/3,845.75 = 1,667.73/x
  3. Step 3: Cross multiply
    2,787.05x = 3,845.75 × 1,667.73
  4. Step 4: Simplify right side
    2,787.05x = 6,413,676.82
  5. Step 5: Solve for x
    x = 6,413,676.82/2,787.05
  6. Step 6: Final answer
    x = 2,301.24

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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.