Home / 3,969.21-5,473.39-2,775.27

Finding the Fourth Proportional to 3,969.21, 5,473.39 and 2,775.27

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Solution

The fourth proportional to 3,969.21, 5,473.39 and 2,775.27 is: 3,826.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.21 : 5,473.39 = 2,775.27 : x
  2. Step 2: Convert to fraction form
    3,969.21/5,473.39 = 2,775.27/x
  3. Step 3: Cross multiply
    3,969.21x = 5,473.39 × 2,775.27
  4. Step 4: Simplify right side
    3,969.21x = 15,190,135.07
  5. Step 5: Solve for x
    x = 15,190,135.07/3,969.21
  6. Step 6: Final answer
    x = 3,826.99

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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.