Home / 2,201.81-3,038.50-1,207.07

Finding the Fourth Proportional to 2,201.81, 3,038.50 and 1,207.07

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Solution

The fourth proportional to 2,201.81, 3,038.50 and 1,207.07 is: 1,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.81 : 3,038.50 = 1,207.07 : x
  2. Step 2: Convert to fraction form
    2,201.81/3,038.50 = 1,207.07/x
  3. Step 3: Cross multiply
    2,201.81x = 3,038.50 × 1,207.07
  4. Step 4: Simplify right side
    2,201.81x = 3,667,682.20
  5. Step 5: Solve for x
    x = 3,667,682.20/2,201.81
  6. Step 6: Final answer
    x = 1,665.76

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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.