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Finding the Fourth Proportional to 3,681.97, 5,081.13 and 2,003.38

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Solution

The fourth proportional to 3,681.97, 5,081.13 and 2,003.38 is: 2,764.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.97 : 5,081.13 = 2,003.38 : x
  2. Step 2: Convert to fraction form
    3,681.97/5,081.13 = 2,003.38/x
  3. Step 3: Cross multiply
    3,681.97x = 5,081.13 × 2,003.38
  4. Step 4: Simplify right side
    3,681.97x = 10,179,421.52
  5. Step 5: Solve for x
    x = 10,179,421.52/3,681.97
  6. Step 6: Final answer
    x = 2,764.67

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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.