Home / 3,639.80-5,022.77-2,225.85

Finding the Fourth Proportional to 3,639.80, 5,022.77 and 2,225.85

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Solution

The fourth proportional to 3,639.80, 5,022.77 and 2,225.85 is: 3,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.80 : 5,022.77 = 2,225.85 : x
  2. Step 2: Convert to fraction form
    3,639.80/5,022.77 = 2,225.85/x
  3. Step 3: Cross multiply
    3,639.80x = 5,022.77 × 2,225.85
  4. Step 4: Simplify right side
    3,639.80x = 11,179,932.60
  5. Step 5: Solve for x
    x = 11,179,932.60/3,639.80
  6. Step 6: Final answer
    x = 3,071.58

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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.