Home / 2,121.94-3,184.14-889.24

Finding the Fourth Proportional to 2,121.94, 3,184.14 and 889.24

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Solution

The fourth proportional to 2,121.94, 3,184.14 and 889.24 is: 1,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.94 : 3,184.14 = 889.24 : x
  2. Step 2: Convert to fraction form
    2,121.94/3,184.14 = 889.24/x
  3. Step 3: Cross multiply
    2,121.94x = 3,184.14 × 889.24
  4. Step 4: Simplify right side
    2,121.94x = 2,831,448.73
  5. Step 5: Solve for x
    x = 2,831,448.73/2,121.94
  6. Step 6: Final answer
    x = 1,334.37

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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.