Home / 3,791.81-5,228.75-2,299.19

Finding the Fourth Proportional to 3,791.81, 5,228.75 and 2,299.19

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Solution

The fourth proportional to 3,791.81, 5,228.75 and 2,299.19 is: 3,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.81 : 5,228.75 = 2,299.19 : x
  2. Step 2: Convert to fraction form
    3,791.81/5,228.75 = 2,299.19/x
  3. Step 3: Cross multiply
    3,791.81x = 5,228.75 × 2,299.19
  4. Step 4: Simplify right side
    3,791.81x = 12,021,869.32
  5. Step 5: Solve for x
    x = 12,021,869.32/3,791.81
  6. Step 6: Final answer
    x = 3,170.48

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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.