Home / 5,186.73-7,145.91-3,858.33

Finding the Fourth Proportional to 5,186.73, 7,145.91 and 3,858.33

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Solution

The fourth proportional to 5,186.73, 7,145.91 and 3,858.33 is: 5,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.73 : 7,145.91 = 3,858.33 : x
  2. Step 2: Convert to fraction form
    5,186.73/7,145.91 = 3,858.33/x
  3. Step 3: Cross multiply
    5,186.73x = 7,145.91 × 3,858.33
  4. Step 4: Simplify right side
    5,186.73x = 27,571,278.93
  5. Step 5: Solve for x
    x = 27,571,278.93/5,186.73
  6. Step 6: Final answer
    x = 5,315.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.