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Finding the Fourth Proportional to 3,683.07, 5,082.62 and 2,112.07

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Solution

The fourth proportional to 3,683.07, 5,082.62 and 2,112.07 is: 2,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,683.07 : 5,082.62 = 2,112.07 : x
  2. Step 2: Convert to fraction form
    3,683.07/5,082.62 = 2,112.07/x
  3. Step 3: Cross multiply
    3,683.07x = 5,082.62 × 2,112.07
  4. Step 4: Simplify right side
    3,683.07x = 10,734,849.22
  5. Step 5: Solve for x
    x = 10,734,849.22/3,683.07
  6. Step 6: Final answer
    x = 2,914.65

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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.