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Finding the Fourth Proportional to 2,001.56, 3,001.96 and 614.51

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Solution

The fourth proportional to 2,001.56, 3,001.96 and 614.51 is: 921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.56 : 3,001.96 = 614.51 : x
  2. Step 2: Convert to fraction form
    2,001.56/3,001.96 = 614.51/x
  3. Step 3: Cross multiply
    2,001.56x = 3,001.96 × 614.51
  4. Step 4: Simplify right side
    2,001.56x = 1,844,739.90
  5. Step 5: Solve for x
    x = 1,844,739.90/2,001.56
  6. Step 6: Final answer
    x = 921.65

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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.