Home / 3,787.90-5,227.06-2,109.22

Finding the Fourth Proportional to 3,787.90, 5,227.06 and 2,109.22

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Solution

The fourth proportional to 3,787.90, 5,227.06 and 2,109.22 is: 2,910.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.90 : 5,227.06 = 2,109.22 : x
  2. Step 2: Convert to fraction form
    3,787.90/5,227.06 = 2,109.22/x
  3. Step 3: Cross multiply
    3,787.90x = 5,227.06 × 2,109.22
  4. Step 4: Simplify right side
    3,787.90x = 11,025,019.49
  5. Step 5: Solve for x
    x = 11,025,019.49/3,787.90
  6. Step 6: Final answer
    x = 2,910.59

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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.