Home / 3,969.40-5,477.18-2,201

Finding the Fourth Proportional to 3,969.40, 5,477.18 and 2,201

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Solution

The fourth proportional to 3,969.40, 5,477.18 and 2,201 is: 3,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.40 : 5,477.18 = 2,201 : x
  2. Step 2: Convert to fraction form
    3,969.40/5,477.18 = 2,201/x
  3. Step 3: Cross multiply
    3,969.40x = 5,477.18 × 2,201
  4. Step 4: Simplify right side
    3,969.40x = 12,055,273.18
  5. Step 5: Solve for x
    x = 12,055,273.18/3,969.40
  6. Step 6: Final answer
    x = 3,037.05

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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.