Home / 5,396.73-8,090.30-2,109.08

Finding the Fourth Proportional to 5,396.73, 8,090.30 and 2,109.08

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Solution

The fourth proportional to 5,396.73, 8,090.30 and 2,109.08 is: 3,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.73 : 8,090.30 = 2,109.08 : x
  2. Step 2: Convert to fraction form
    5,396.73/8,090.30 = 2,109.08/x
  3. Step 3: Cross multiply
    5,396.73x = 8,090.30 × 2,109.08
  4. Step 4: Simplify right side
    5,396.73x = 17,063,089.92
  5. Step 5: Solve for x
    x = 17,063,089.92/5,396.73
  6. Step 6: Final answer
    x = 3,161.75

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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.