Home / 3,210.03-4,815.78-1,361.21

Finding the Fourth Proportional to 3,210.03, 4,815.78 and 1,361.21

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Solution

The fourth proportional to 3,210.03, 4,815.78 and 1,361.21 is: 2,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.03 : 4,815.78 = 1,361.21 : x
  2. Step 2: Convert to fraction form
    3,210.03/4,815.78 = 1,361.21/x
  3. Step 3: Cross multiply
    3,210.03x = 4,815.78 × 1,361.21
  4. Step 4: Simplify right side
    3,210.03x = 6,555,262.54
  5. Step 5: Solve for x
    x = 6,555,262.54/3,210.03
  6. Step 6: Final answer
    x = 2,042.12

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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.