Home / 3,396.80-5,085.48-2,089.46

Finding the Fourth Proportional to 3,396.80, 5,085.48 and 2,089.46

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Solution

The fourth proportional to 3,396.80, 5,085.48 and 2,089.46 is: 3,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.80 : 5,085.48 = 2,089.46 : x
  2. Step 2: Convert to fraction form
    3,396.80/5,085.48 = 2,089.46/x
  3. Step 3: Cross multiply
    3,396.80x = 5,085.48 × 2,089.46
  4. Step 4: Simplify right side
    3,396.80x = 10,625,907.04
  5. Step 5: Solve for x
    x = 10,625,907.04/3,396.80
  6. Step 6: Final answer
    x = 3,128.21

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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.