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Finding the Fourth Proportional to 2,033.91, 3,049.94 and 646.99

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Solution

The fourth proportional to 2,033.91, 3,049.94 and 646.99 is: 970.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,033.91 : 3,049.94 = 646.99 : x
  2. Step 2: Convert to fraction form
    2,033.91/3,049.94 = 646.99/x
  3. Step 3: Cross multiply
    2,033.91x = 3,049.94 × 646.99
  4. Step 4: Simplify right side
    2,033.91x = 1,973,274.67
  5. Step 5: Solve for x
    x = 1,973,274.67/2,033.91
  6. Step 6: Final answer
    x = 970.19

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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.