Home / 3,969.42-5,477.91-2,201.10

Finding the Fourth Proportional to 3,969.42, 5,477.91 and 2,201.10

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Solution

The fourth proportional to 3,969.42, 5,477.91 and 2,201.10 is: 3,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.42 : 5,477.91 = 2,201.10 : x
  2. Step 2: Convert to fraction form
    3,969.42/5,477.91 = 2,201.10/x
  3. Step 3: Cross multiply
    3,969.42x = 5,477.91 × 2,201.10
  4. Step 4: Simplify right side
    3,969.42x = 12,057,427.70
  5. Step 5: Solve for x
    x = 12,057,427.70/3,969.42
  6. Step 6: Final answer
    x = 3,037.58

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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.