Home / 3,787.92-5,227.16-2,109.02

Finding the Fourth Proportional to 3,787.92, 5,227.16 and 2,109.02

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Solution

The fourth proportional to 3,787.92, 5,227.16 and 2,109.02 is: 2,910.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.92 : 5,227.16 = 2,109.02 : x
  2. Step 2: Convert to fraction form
    3,787.92/5,227.16 = 2,109.02/x
  3. Step 3: Cross multiply
    3,787.92x = 5,227.16 × 2,109.02
  4. Step 4: Simplify right side
    3,787.92x = 11,024,148.30
  5. Step 5: Solve for x
    x = 11,024,148.30/3,787.92
  6. Step 6: Final answer
    x = 2,910.34

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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.