Home / 5,170.41-7,135.17-2,812.54

Finding the Fourth Proportional to 5,170.41, 7,135.17 and 2,812.54

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Solution

The fourth proportional to 5,170.41, 7,135.17 and 2,812.54 is: 3,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.41 : 7,135.17 = 2,812.54 : x
  2. Step 2: Convert to fraction form
    5,170.41/7,135.17 = 2,812.54/x
  3. Step 3: Cross multiply
    5,170.41x = 7,135.17 × 2,812.54
  4. Step 4: Simplify right side
    5,170.41x = 20,067,951.03
  5. Step 5: Solve for x
    x = 20,067,951.03/5,170.41
  6. Step 6: Final answer
    x = 3,881.31

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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.