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Finding the Fourth Proportional to 2,029, 3,044.09 and 642.53

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Solution

The fourth proportional to 2,029, 3,044.09 and 642.53 is: 963.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029 : 3,044.09 = 642.53 : x
  2. Step 2: Convert to fraction form
    2,029/3,044.09 = 642.53/x
  3. Step 3: Cross multiply
    2,029x = 3,044.09 × 642.53
  4. Step 4: Simplify right side
    2,029x = 1,955,919.15
  5. Step 5: Solve for x
    x = 1,955,919.15/2,029
  6. Step 6: Final answer
    x = 963.98

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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.