Home / 5,172.41-7,137.92-2,814.54

Finding the Fourth Proportional to 5,172.41, 7,137.92 and 2,814.54

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Solution

The fourth proportional to 5,172.41, 7,137.92 and 2,814.54 is: 3,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.41 : 7,137.92 = 2,814.54 : x
  2. Step 2: Convert to fraction form
    5,172.41/7,137.92 = 2,814.54/x
  3. Step 3: Cross multiply
    5,172.41x = 7,137.92 × 2,814.54
  4. Step 4: Simplify right side
    5,172.41x = 20,089,947.28
  5. Step 5: Solve for x
    x = 20,089,947.28/5,172.41
  6. Step 6: Final answer
    x = 3,884.06

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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.