Home / 3,069.25-4,604.56-1,121.40

Finding the Fourth Proportional to 3,069.25, 4,604.56 and 1,121.40

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Solution

The fourth proportional to 3,069.25, 4,604.56 and 1,121.40 is: 1,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.25 : 4,604.56 = 1,121.40 : x
  2. Step 2: Convert to fraction form
    3,069.25/4,604.56 = 1,121.40/x
  3. Step 3: Cross multiply
    3,069.25x = 4,604.56 × 1,121.40
  4. Step 4: Simplify right side
    3,069.25x = 5,163,550.78
  5. Step 5: Solve for x
    x = 5,163,550.78/3,069.25
  6. Step 6: Final answer
    x = 1,682.35

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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.