Home / 3,069.20-4,604.08-1,121.42

Finding the Fourth Proportional to 3,069.20, 4,604.08 and 1,121.42

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Solution

The fourth proportional to 3,069.20, 4,604.08 and 1,121.42 is: 1,682.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.20 : 4,604.08 = 1,121.42 : x
  2. Step 2: Convert to fraction form
    3,069.20/4,604.08 = 1,121.42/x
  3. Step 3: Cross multiply
    3,069.20x = 4,604.08 × 1,121.42
  4. Step 4: Simplify right side
    3,069.20x = 5,163,107.39
  5. Step 5: Solve for x
    x = 5,163,107.39/3,069.20
  6. Step 6: Final answer
    x = 1,682.23

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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.