Home / 3,790.26-5,231.07-2,218.35

Finding the Fourth Proportional to 3,790.26, 5,231.07 and 2,218.35

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Solution

The fourth proportional to 3,790.26, 5,231.07 and 2,218.35 is: 3,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.26 : 5,231.07 = 2,218.35 : x
  2. Step 2: Convert to fraction form
    3,790.26/5,231.07 = 2,218.35/x
  3. Step 3: Cross multiply
    3,790.26x = 5,231.07 × 2,218.35
  4. Step 4: Simplify right side
    3,790.26x = 11,604,344.13
  5. Step 5: Solve for x
    x = 11,604,344.13/3,790.26
  6. Step 6: Final answer
    x = 3,061.62

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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.