Home / 3,321.62-4,987.99-2,075.12

Finding the Fourth Proportional to 3,321.62, 4,987.99 and 2,075.12

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Solution

The fourth proportional to 3,321.62, 4,987.99 and 2,075.12 is: 3,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.62 : 4,987.99 = 2,075.12 : x
  2. Step 2: Convert to fraction form
    3,321.62/4,987.99 = 2,075.12/x
  3. Step 3: Cross multiply
    3,321.62x = 4,987.99 × 2,075.12
  4. Step 4: Simplify right side
    3,321.62x = 10,350,647.68
  5. Step 5: Solve for x
    x = 10,350,647.68/3,321.62
  6. Step 6: Final answer
    x = 3,116.14

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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.