Home / 2,201.91-3,038.72-1,207.22

Finding the Fourth Proportional to 2,201.91, 3,038.72 and 1,207.22

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Solution

The fourth proportional to 2,201.91, 3,038.72 and 1,207.22 is: 1,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.91 : 3,038.72 = 1,207.22 : x
  2. Step 2: Convert to fraction form
    2,201.91/3,038.72 = 1,207.22/x
  3. Step 3: Cross multiply
    2,201.91x = 3,038.72 × 1,207.22
  4. Step 4: Simplify right side
    2,201.91x = 3,668,414.17
  5. Step 5: Solve for x
    x = 3,668,414.17/2,201.91
  6. Step 6: Final answer
    x = 1,666.02

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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.