Home / 2,201.78-3,038.29-1,207.06

Finding the Fourth Proportional to 2,201.78, 3,038.29 and 1,207.06

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Solution

The fourth proportional to 2,201.78, 3,038.29 and 1,207.06 is: 1,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.78 : 3,038.29 = 1,207.06 : x
  2. Step 2: Convert to fraction form
    2,201.78/3,038.29 = 1,207.06/x
  3. Step 3: Cross multiply
    2,201.78x = 3,038.29 × 1,207.06
  4. Step 4: Simplify right side
    2,201.78x = 3,667,387.71
  5. Step 5: Solve for x
    x = 3,667,387.71/2,201.78
  6. Step 6: Final answer
    x = 1,665.64

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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.