Home / 2,201.21-3,037.73-1,206.55

Finding the Fourth Proportional to 2,201.21, 3,037.73 and 1,206.55

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Solution

The fourth proportional to 2,201.21, 3,037.73 and 1,206.55 is: 1,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.21 : 3,037.73 = 1,206.55 : x
  2. Step 2: Convert to fraction form
    2,201.21/3,037.73 = 1,206.55/x
  3. Step 3: Cross multiply
    2,201.21x = 3,037.73 × 1,206.55
  4. Step 4: Simplify right side
    2,201.21x = 3,665,153.81
  5. Step 5: Solve for x
    x = 3,665,153.81/2,201.21
  6. Step 6: Final answer
    x = 1,665.06

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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.