Home / 3,786.12-5,221.87-2,460.25

Finding the Fourth Proportional to 3,786.12, 5,221.87 and 2,460.25

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Solution

The fourth proportional to 3,786.12, 5,221.87 and 2,460.25 is: 3,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.12 : 5,221.87 = 2,460.25 : x
  2. Step 2: Convert to fraction form
    3,786.12/5,221.87 = 2,460.25/x
  3. Step 3: Cross multiply
    3,786.12x = 5,221.87 × 2,460.25
  4. Step 4: Simplify right side
    3,786.12x = 12,847,105.67
  5. Step 5: Solve for x
    x = 12,847,105.67/3,786.12
  6. Step 6: Final answer
    x = 3,393.21

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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.