Home / 3,069.69-4,604.84-1,220.39

Finding the Fourth Proportional to 3,069.69, 4,604.84 and 1,220.39

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Solution

The fourth proportional to 3,069.69, 4,604.84 and 1,220.39 is: 1,830.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.69 : 4,604.84 = 1,220.39 : x
  2. Step 2: Convert to fraction form
    3,069.69/4,604.84 = 1,220.39/x
  3. Step 3: Cross multiply
    3,069.69x = 4,604.84 × 1,220.39
  4. Step 4: Simplify right side
    3,069.69x = 5,619,694.59
  5. Step 5: Solve for x
    x = 5,619,694.59/3,069.69
  6. Step 6: Final answer
    x = 1,830.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.