Home / 3,786.30-5,222.48-2,291.64

Finding the Fourth Proportional to 3,786.30, 5,222.48 and 2,291.64

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Solution

The fourth proportional to 3,786.30, 5,222.48 and 2,291.64 is: 3,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.30 : 5,222.48 = 2,291.64 : x
  2. Step 2: Convert to fraction form
    3,786.30/5,222.48 = 2,291.64/x
  3. Step 3: Cross multiply
    3,786.30x = 5,222.48 × 2,291.64
  4. Step 4: Simplify right side
    3,786.30x = 11,968,044.07
  5. Step 5: Solve for x
    x = 11,968,044.07/3,786.30
  6. Step 6: Final answer
    x = 3,160.88

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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.