Home / 3,790.69-5,230.39-2,218.48

Finding the Fourth Proportional to 3,790.69, 5,230.39 and 2,218.48

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Solution

The fourth proportional to 3,790.69, 5,230.39 and 2,218.48 is: 3,061.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.69 : 5,230.39 = 2,218.48 : x
  2. Step 2: Convert to fraction form
    3,790.69/5,230.39 = 2,218.48/x
  3. Step 3: Cross multiply
    3,790.69x = 5,230.39 × 2,218.48
  4. Step 4: Simplify right side
    3,790.69x = 11,603,515.61
  5. Step 5: Solve for x
    x = 11,603,515.61/3,790.69
  6. Step 6: Final answer
    x = 3,061.06

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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.