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Finding the Fourth Proportional to 3,786.69, 5,673.48 and 2,955.39

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Solution

The fourth proportional to 3,786.69, 5,673.48 and 2,955.39 is: 4,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.69 : 5,673.48 = 2,955.39 : x
  2. Step 2: Convert to fraction form
    3,786.69/5,673.48 = 2,955.39/x
  3. Step 3: Cross multiply
    3,786.69x = 5,673.48 × 2,955.39
  4. Step 4: Simplify right side
    3,786.69x = 16,767,346.06
  5. Step 5: Solve for x
    x = 16,767,346.06/3,786.69
  6. Step 6: Final answer
    x = 4,427.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.