Home / 2,018.75-3,028.05-632.70

Finding the Fourth Proportional to 2,018.75, 3,028.05 and 632.70

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Solution

The fourth proportional to 2,018.75, 3,028.05 and 632.70 is: 949.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.75 : 3,028.05 = 632.70 : x
  2. Step 2: Convert to fraction form
    2,018.75/3,028.05 = 632.70/x
  3. Step 3: Cross multiply
    2,018.75x = 3,028.05 × 632.70
  4. Step 4: Simplify right side
    2,018.75x = 1,915,847.24
  5. Step 5: Solve for x
    x = 1,915,847.24/2,018.75
  6. Step 6: Final answer
    x = 949.03

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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.