Home / 3,790.67-5,231.03-2,218.77

Finding the Fourth Proportional to 3,790.67, 5,231.03 and 2,218.77

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Solution

The fourth proportional to 3,790.67, 5,231.03 and 2,218.77 is: 3,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.67 : 5,231.03 = 2,218.77 : x
  2. Step 2: Convert to fraction form
    3,790.67/5,231.03 = 2,218.77/x
  3. Step 3: Cross multiply
    3,790.67x = 5,231.03 × 2,218.77
  4. Step 4: Simplify right side
    3,790.67x = 11,606,441.34
  5. Step 5: Solve for x
    x = 11,606,441.34/3,790.67
  6. Step 6: Final answer
    x = 3,061.85

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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.