Home / 2,026.47-3,040.11-639.94

Finding the Fourth Proportional to 2,026.47, 3,040.11 and 639.94

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Solution

The fourth proportional to 2,026.47, 3,040.11 and 639.94 is: 960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.47 : 3,040.11 = 639.94 : x
  2. Step 2: Convert to fraction form
    2,026.47/3,040.11 = 639.94/x
  3. Step 3: Cross multiply
    2,026.47x = 3,040.11 × 639.94
  4. Step 4: Simplify right side
    2,026.47x = 1,945,474.69
  5. Step 5: Solve for x
    x = 1,945,474.69/2,026.47
  6. Step 6: Final answer
    x = 960.03

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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.