Home / 2,025.95-3,039.05-639.32

Finding the Fourth Proportional to 2,025.95, 3,039.05 and 639.32

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Solution

The fourth proportional to 2,025.95, 3,039.05 and 639.32 is: 959.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.95 : 3,039.05 = 639.32 : x
  2. Step 2: Convert to fraction form
    2,025.95/3,039.05 = 639.32/x
  3. Step 3: Cross multiply
    2,025.95x = 3,039.05 × 639.32
  4. Step 4: Simplify right side
    2,025.95x = 1,942,911.85
  5. Step 5: Solve for x
    x = 1,942,911.85/2,025.95
  6. Step 6: Final answer
    x = 959.02

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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.