Home / 3,786.83-5,225.75-2,108.19

Finding the Fourth Proportional to 3,786.83, 5,225.75 and 2,108.19

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Solution

The fourth proportional to 3,786.83, 5,225.75 and 2,108.19 is: 2,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.83 : 5,225.75 = 2,108.19 : x
  2. Step 2: Convert to fraction form
    3,786.83/5,225.75 = 2,108.19/x
  3. Step 3: Cross multiply
    3,786.83x = 5,225.75 × 2,108.19
  4. Step 4: Simplify right side
    3,786.83x = 11,016,873.89
  5. Step 5: Solve for x
    x = 11,016,873.89/3,786.83
  6. Step 6: Final answer
    x = 2,909.26

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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.