Home / 5,186.53-7,768.99-2,415.61

Finding the Fourth Proportional to 5,186.53, 7,768.99 and 2,415.61

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Solution

The fourth proportional to 5,186.53, 7,768.99 and 2,415.61 is: 3,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.53 : 7,768.99 = 2,415.61 : x
  2. Step 2: Convert to fraction form
    5,186.53/7,768.99 = 2,415.61/x
  3. Step 3: Cross multiply
    5,186.53x = 7,768.99 × 2,415.61
  4. Step 4: Simplify right side
    5,186.53x = 18,766,849.93
  5. Step 5: Solve for x
    x = 18,766,849.93/5,186.53
  6. Step 6: Final answer
    x = 3,618.38

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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.