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Finding the Fourth Proportional to 2,201.12, 3,301.68 and 662.12

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Solution

The fourth proportional to 2,201.12, 3,301.68 and 662.12 is: 993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.12 : 3,301.68 = 662.12 : x
  2. Step 2: Convert to fraction form
    2,201.12/3,301.68 = 662.12/x
  3. Step 3: Cross multiply
    2,201.12x = 3,301.68 × 662.12
  4. Step 4: Simplify right side
    2,201.12x = 2,186,108.36
  5. Step 5: Solve for x
    x = 2,186,108.36/2,201.12
  6. Step 6: Final answer
    x = 993.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.