Home / 5,121.82-7,683.19-2,002.05

Finding the Fourth Proportional to 5,121.82, 7,683.19 and 2,002.05

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Solution

The fourth proportional to 5,121.82, 7,683.19 and 2,002.05 is: 3,003.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.82 : 7,683.19 = 2,002.05 : x
  2. Step 2: Convert to fraction form
    5,121.82/7,683.19 = 2,002.05/x
  3. Step 3: Cross multiply
    5,121.82x = 7,683.19 × 2,002.05
  4. Step 4: Simplify right side
    5,121.82x = 15,382,130.54
  5. Step 5: Solve for x
    x = 15,382,130.54/5,121.82
  6. Step 6: Final answer
    x = 3,003.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.