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Finding the Fourth Proportional to 2,030.81, 3,046.38 and 644.26

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Solution

The fourth proportional to 2,030.81, 3,046.38 and 644.26 is: 966.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.81 : 3,046.38 = 644.26 : x
  2. Step 2: Convert to fraction form
    2,030.81/3,046.38 = 644.26/x
  3. Step 3: Cross multiply
    2,030.81x = 3,046.38 × 644.26
  4. Step 4: Simplify right side
    2,030.81x = 1,962,660.78
  5. Step 5: Solve for x
    x = 1,962,660.78/2,030.81
  6. Step 6: Final answer
    x = 966.44

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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.