Home / 5,189.13-7,777.89-2,724.21

Finding the Fourth Proportional to 5,189.13, 7,777.89 and 2,724.21

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Solution

The fourth proportional to 5,189.13, 7,777.89 and 2,724.21 is: 4,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.13 : 7,777.89 = 2,724.21 : x
  2. Step 2: Convert to fraction form
    5,189.13/7,777.89 = 2,724.21/x
  3. Step 3: Cross multiply
    5,189.13x = 7,777.89 × 2,724.21
  4. Step 4: Simplify right side
    5,189.13x = 21,188,605.72
  5. Step 5: Solve for x
    x = 21,188,605.72/5,189.13
  6. Step 6: Final answer
    x = 4,083.27

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1.5x scale

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.