Home / 3,787.78-5,227.55-2,217.19

Finding the Fourth Proportional to 3,787.78, 5,227.55 and 2,217.19

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Solution

The fourth proportional to 3,787.78, 5,227.55 and 2,217.19 is: 3,059.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.78 : 5,227.55 = 2,217.19 : x
  2. Step 2: Convert to fraction form
    3,787.78/5,227.55 = 2,217.19/x
  3. Step 3: Cross multiply
    3,787.78x = 5,227.55 × 2,217.19
  4. Step 4: Simplify right side
    3,787.78x = 11,590,473.57
  5. Step 5: Solve for x
    x = 11,590,473.57/3,787.78
  6. Step 6: Final answer
    x = 3,059.96

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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.