Home / 3,983.95-5,975.13-3,786.36

Finding the Fourth Proportional to 3,983.95, 5,975.13 and 3,786.36

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Solution

The fourth proportional to 3,983.95, 5,975.13 and 3,786.36 is: 5,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.95 : 5,975.13 = 3,786.36 : x
  2. Step 2: Convert to fraction form
    3,983.95/5,975.13 = 3,786.36/x
  3. Step 3: Cross multiply
    3,983.95x = 5,975.13 × 3,786.36
  4. Step 4: Simplify right side
    3,983.95x = 22,623,993.23
  5. Step 5: Solve for x
    x = 22,623,993.23/3,983.95
  6. Step 6: Final answer
    x = 5,678.78

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Similar ratio
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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.