Home / 3,860.07-5,349.30-3,786.22

Finding the Fourth Proportional to 3,860.07, 5,349.30 and 3,786.22

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Solution

The fourth proportional to 3,860.07, 5,349.30 and 3,786.22 is: 5,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.07 : 5,349.30 = 3,786.22 : x
  2. Step 2: Convert to fraction form
    3,860.07/5,349.30 = 3,786.22/x
  3. Step 3: Cross multiply
    3,860.07x = 5,349.30 × 3,786.22
  4. Step 4: Simplify right side
    3,860.07x = 20,253,626.65
  5. Step 5: Solve for x
    x = 20,253,626.65/3,860.07
  6. Step 6: Final answer
    x = 5,246.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.