Home / 7,121.57-10,682.37-1,927.44

Finding the Fourth Proportional to 7,121.57, 10,682.37 and 1,927.44

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Solution

The fourth proportional to 7,121.57, 10,682.37 and 1,927.44 is: 2,891.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.57 : 10,682.37 = 1,927.44 : x
  2. Step 2: Convert to fraction form
    7,121.57/10,682.37 = 1,927.44/x
  3. Step 3: Cross multiply
    7,121.57x = 10,682.37 × 1,927.44
  4. Step 4: Simplify right side
    7,121.57x = 20,589,627.23
  5. Step 5: Solve for x
    x = 20,589,627.23/7,121.57
  6. Step 6: Final answer
    x = 2,891.17

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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.