Home / 2,026.14-3,039.36-639.54

Finding the Fourth Proportional to 2,026.14, 3,039.36 and 639.54

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Solution

The fourth proportional to 2,026.14, 3,039.36 and 639.54 is: 959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.14 : 3,039.36 = 639.54 : x
  2. Step 2: Convert to fraction form
    2,026.14/3,039.36 = 639.54/x
  3. Step 3: Cross multiply
    2,026.14x = 3,039.36 × 639.54
  4. Step 4: Simplify right side
    2,026.14x = 1,943,792.29
  5. Step 5: Solve for x
    x = 1,943,792.29/2,026.14
  6. Step 6: Final answer
    x = 959.36

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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.