Home / 2,201.85-3,038.49-1,207.09

Finding the Fourth Proportional to 2,201.85, 3,038.49 and 1,207.09

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Solution

The fourth proportional to 2,201.85, 3,038.49 and 1,207.09 is: 1,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.85 : 3,038.49 = 1,207.09 : x
  2. Step 2: Convert to fraction form
    2,201.85/3,038.49 = 1,207.09/x
  3. Step 3: Cross multiply
    2,201.85x = 3,038.49 × 1,207.09
  4. Step 4: Simplify right side
    2,201.85x = 3,667,739.84
  5. Step 5: Solve for x
    x = 3,667,739.84/2,201.85
  6. Step 6: Final answer
    x = 1,665.75

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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.