Home / 3,786.11-5,219.14-2,988.06

Finding the Fourth Proportional to 3,786.11, 5,219.14 and 2,988.06

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Solution

The fourth proportional to 3,786.11, 5,219.14 and 2,988.06 is: 4,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.11 : 5,219.14 = 2,988.06 : x
  2. Step 2: Convert to fraction form
    3,786.11/5,219.14 = 2,988.06/x
  3. Step 3: Cross multiply
    3,786.11x = 5,219.14 × 2,988.06
  4. Step 4: Simplify right side
    3,786.11x = 15,595,103.47
  5. Step 5: Solve for x
    x = 15,595,103.47/3,786.11
  6. Step 6: Final answer
    x = 4,119.03

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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.