Home / 3,787.75-5,227.43-2,109.36

Finding the Fourth Proportional to 3,787.75, 5,227.43 and 2,109.36

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Solution

The fourth proportional to 3,787.75, 5,227.43 and 2,109.36 is: 2,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.75 : 5,227.43 = 2,109.36 : x
  2. Step 2: Convert to fraction form
    3,787.75/5,227.43 = 2,109.36/x
  3. Step 3: Cross multiply
    3,787.75x = 5,227.43 × 2,109.36
  4. Step 4: Simplify right side
    3,787.75x = 11,026,531.74
  5. Step 5: Solve for x
    x = 11,026,531.74/3,787.75
  6. Step 6: Final answer
    x = 2,911.10

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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.