Home / 3,786.69-5,225.64-2,215.09

Finding the Fourth Proportional to 3,786.69, 5,225.64 and 2,215.09

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Solution

The fourth proportional to 3,786.69, 5,225.64 and 2,215.09 is: 3,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.69 : 5,225.64 = 2,215.09 : x
  2. Step 2: Convert to fraction form
    3,786.69/5,225.64 = 2,215.09/x
  3. Step 3: Cross multiply
    3,786.69x = 5,225.64 × 2,215.09
  4. Step 4: Simplify right side
    3,786.69x = 11,575,236.78
  5. Step 5: Solve for x
    x = 11,575,236.78/3,786.69
  6. Step 6: Final answer
    x = 3,056.82

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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.