Home / 2,201.67-3,038.31-1,206.97

Finding the Fourth Proportional to 2,201.67, 3,038.31 and 1,206.97

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Solution

The fourth proportional to 2,201.67, 3,038.31 and 1,206.97 is: 1,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.67 : 3,038.31 = 1,206.97 : x
  2. Step 2: Convert to fraction form
    2,201.67/3,038.31 = 1,206.97/x
  3. Step 3: Cross multiply
    2,201.67x = 3,038.31 × 1,206.97
  4. Step 4: Simplify right side
    2,201.67x = 3,667,141.42
  5. Step 5: Solve for x
    x = 3,667,141.42/2,201.67
  6. Step 6: Final answer
    x = 1,665.62

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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.