Home / 2,189.37-3,261.65-2,084.88

Finding the Fourth Proportional to 2,189.37, 3,261.65 and 2,084.88

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Solution

The fourth proportional to 2,189.37, 3,261.65 and 2,084.88 is: 3,105.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.37 : 3,261.65 = 2,084.88 : x
  2. Step 2: Convert to fraction form
    2,189.37/3,261.65 = 2,084.88/x
  3. Step 3: Cross multiply
    2,189.37x = 3,261.65 × 2,084.88
  4. Step 4: Simplify right side
    2,189.37x = 6,800,138.43
  5. Step 5: Solve for x
    x = 6,800,138.43/2,189.37
  6. Step 6: Final answer
    x = 3,105.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.