Home / 2,772.91-4,156.41-1,383.51

Finding the Fourth Proportional to 2,772.91, 4,156.41 and 1,383.51

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Solution

The fourth proportional to 2,772.91, 4,156.41 and 1,383.51 is: 2,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.91 : 4,156.41 = 1,383.51 : x
  2. Step 2: Convert to fraction form
    2,772.91/4,156.41 = 1,383.51/x
  3. Step 3: Cross multiply
    2,772.91x = 4,156.41 × 1,383.51
  4. Step 4: Simplify right side
    2,772.91x = 5,750,427.88
  5. Step 5: Solve for x
    x = 5,750,427.88/2,772.91
  6. Step 6: Final answer
    x = 2,073.79

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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.