Home / 2,122.23-3,184.58-889.55

Finding the Fourth Proportional to 2,122.23, 3,184.58 and 889.55

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Solution

The fourth proportional to 2,122.23, 3,184.58 and 889.55 is: 1,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.23 : 3,184.58 = 889.55 : x
  2. Step 2: Convert to fraction form
    2,122.23/3,184.58 = 889.55/x
  3. Step 3: Cross multiply
    2,122.23x = 3,184.58 × 889.55
  4. Step 4: Simplify right side
    2,122.23x = 2,832,829.44
  5. Step 5: Solve for x
    x = 2,832,829.44/2,122.23
  6. Step 6: Final answer
    x = 1,334.84

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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.