Home / 2,020.21-3,028.86-786.58

Finding the Fourth Proportional to 2,020.21, 3,028.86 and 786.58

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Solution

The fourth proportional to 2,020.21, 3,028.86 and 786.58 is: 1,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.21 : 3,028.86 = 786.58 : x
  2. Step 2: Convert to fraction form
    2,020.21/3,028.86 = 786.58/x
  3. Step 3: Cross multiply
    2,020.21x = 3,028.86 × 786.58
  4. Step 4: Simplify right side
    2,020.21x = 2,382,440.70
  5. Step 5: Solve for x
    x = 2,382,440.70/2,020.21
  6. Step 6: Final answer
    x = 1,179.30

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1.5x scale

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.