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Finding the Fourth Proportional to 3,889.44, 5,373.87 and 3,850.49

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Solution

The fourth proportional to 3,889.44, 5,373.87 and 3,850.49 is: 5,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.44 : 5,373.87 = 3,850.49 : x
  2. Step 2: Convert to fraction form
    3,889.44/5,373.87 = 3,850.49/x
  3. Step 3: Cross multiply
    3,889.44x = 5,373.87 × 3,850.49
  4. Step 4: Simplify right side
    3,889.44x = 20,692,012.29
  5. Step 5: Solve for x
    x = 20,692,012.29/3,889.44
  6. Step 6: Final answer
    x = 5,320.05

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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.