Home / 3,938.66-5,432.73-2,992.33

Finding the Fourth Proportional to 3,938.66, 5,432.73 and 2,992.33

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Solution

The fourth proportional to 3,938.66, 5,432.73 and 2,992.33 is: 4,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.66 : 5,432.73 = 2,992.33 : x
  2. Step 2: Convert to fraction form
    3,938.66/5,432.73 = 2,992.33/x
  3. Step 3: Cross multiply
    3,938.66x = 5,432.73 × 2,992.33
  4. Step 4: Simplify right side
    3,938.66x = 16,256,520.96
  5. Step 5: Solve for x
    x = 16,256,520.96/3,938.66
  6. Step 6: Final answer
    x = 4,127.42

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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.