Home / 5,396.67-8,090.21-2,109.02

Finding the Fourth Proportional to 5,396.67, 8,090.21 and 2,109.02

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Solution

The fourth proportional to 5,396.67, 8,090.21 and 2,109.02 is: 3,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.67 : 8,090.21 = 2,109.02 : x
  2. Step 2: Convert to fraction form
    5,396.67/8,090.21 = 2,109.02/x
  3. Step 3: Cross multiply
    5,396.67x = 8,090.21 × 2,109.02
  4. Step 4: Simplify right side
    5,396.67x = 17,062,386.56
  5. Step 5: Solve for x
    x = 17,062,386.56/5,396.67
  6. Step 6: Final answer
    x = 3,161.65

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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.