Home / 3,938.33-5,434.38-2,170.04

Finding the Fourth Proportional to 3,938.33, 5,434.38 and 2,170.04

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Solution

The fourth proportional to 3,938.33, 5,434.38 and 2,170.04 is: 2,994.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.33 : 5,434.38 = 2,170.04 : x
  2. Step 2: Convert to fraction form
    3,938.33/5,434.38 = 2,170.04/x
  3. Step 3: Cross multiply
    3,938.33x = 5,434.38 × 2,170.04
  4. Step 4: Simplify right side
    3,938.33x = 11,792,794.80
  5. Step 5: Solve for x
    x = 11,792,794.80/3,938.33
  6. Step 6: Final answer
    x = 2,994.37

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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.