Home / 3,938.33-5,427.41-2,817.32

Finding the Fourth Proportional to 3,938.33, 5,427.41 and 2,817.32

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Solution

The fourth proportional to 3,938.33, 5,427.41 and 2,817.32 is: 3,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.33 : 5,427.41 = 2,817.32 : x
  2. Step 2: Convert to fraction form
    3,938.33/5,427.41 = 2,817.32/x
  3. Step 3: Cross multiply
    3,938.33x = 5,427.41 × 2,817.32
  4. Step 4: Simplify right side
    3,938.33x = 15,290,732.41
  5. Step 5: Solve for x
    x = 15,290,732.41/3,938.33
  6. Step 6: Final answer
    x = 3,882.54

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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.