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Finding the Fourth Proportional to 2,001.66, 3,002.99 and 703.09

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Solution

The fourth proportional to 2,001.66, 3,002.99 and 703.09 is: 1,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.66 : 3,002.99 = 703.09 : x
  2. Step 2: Convert to fraction form
    2,001.66/3,002.99 = 703.09/x
  3. Step 3: Cross multiply
    2,001.66x = 3,002.99 × 703.09
  4. Step 4: Simplify right side
    2,001.66x = 2,111,372.24
  5. Step 5: Solve for x
    x = 2,111,372.24/2,001.66
  6. Step 6: Final answer
    x = 1,054.81

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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.