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Finding the Fourth Proportional to 2,033.81, 3,051 and 647

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Solution

The fourth proportional to 2,033.81, 3,051 and 647 is: 970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,033.81 : 3,051 = 647 : x
  2. Step 2: Convert to fraction form
    2,033.81/3,051 = 647/x
  3. Step 3: Cross multiply
    2,033.81x = 3,051 × 647
  4. Step 4: Simplify right side
    2,033.81x = 1,973,997
  5. Step 5: Solve for x
    x = 1,973,997/2,033.81
  6. Step 6: Final answer
    x = 970.59

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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.