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Finding the Fourth Proportional to 2,001.74, 3,003.24 and 905.81

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Solution

The fourth proportional to 2,001.74, 3,003.24 and 905.81 is: 1,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.74 : 3,003.24 = 905.81 : x
  2. Step 2: Convert to fraction form
    2,001.74/3,003.24 = 905.81/x
  3. Step 3: Cross multiply
    2,001.74x = 3,003.24 × 905.81
  4. Step 4: Simplify right side
    2,001.74x = 2,720,353.20
  5. Step 5: Solve for x
    x = 2,720,353.20/2,001.74
  6. Step 6: Final answer
    x = 1,359.00

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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.