Home / 3,318.26-4,976.57-1,127.21

Finding the Fourth Proportional to 3,318.26, 4,976.57 and 1,127.21

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Solution

The fourth proportional to 3,318.26, 4,976.57 and 1,127.21 is: 1,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.26 : 4,976.57 = 1,127.21 : x
  2. Step 2: Convert to fraction form
    3,318.26/4,976.57 = 1,127.21/x
  3. Step 3: Cross multiply
    3,318.26x = 4,976.57 × 1,127.21
  4. Step 4: Simplify right side
    3,318.26x = 5,609,608.95
  5. Step 5: Solve for x
    x = 5,609,608.95/3,318.26
  6. Step 6: Final answer
    x = 1,690.53

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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.