Home / 3,069.12-4,601.52-1,121.04

Finding the Fourth Proportional to 3,069.12, 4,601.52 and 1,121.04

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Solution

The fourth proportional to 3,069.12, 4,601.52 and 1,121.04 is: 1,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.12 : 4,601.52 = 1,121.04 : x
  2. Step 2: Convert to fraction form
    3,069.12/4,601.52 = 1,121.04/x
  3. Step 3: Cross multiply
    3,069.12x = 4,601.52 × 1,121.04
  4. Step 4: Simplify right side
    3,069.12x = 5,158,487.98
  5. Step 5: Solve for x
    x = 5,158,487.98/3,069.12
  6. Step 6: Final answer
    x = 1,680.77

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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.