Home / 2,026.73-3,040.61-640.21

Finding the Fourth Proportional to 2,026.73, 3,040.61 and 640.21

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Solution

The fourth proportional to 2,026.73, 3,040.61 and 640.21 is: 960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.73 : 3,040.61 = 640.21 : x
  2. Step 2: Convert to fraction form
    2,026.73/3,040.61 = 640.21/x
  3. Step 3: Cross multiply
    2,026.73x = 3,040.61 × 640.21
  4. Step 4: Simplify right side
    2,026.73x = 1,946,631.37
  5. Step 5: Solve for x
    x = 1,946,631.37/2,026.73
  6. Step 6: Final answer
    x = 960.48

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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.