Home / 2,189.70-3,274.58-1,634.80

Finding the Fourth Proportional to 2,189.70, 3,274.58 and 1,634.80

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Solution

The fourth proportional to 2,189.70, 3,274.58 and 1,634.80 is: 2,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.70 : 3,274.58 = 1,634.80 : x
  2. Step 2: Convert to fraction form
    2,189.70/3,274.58 = 1,634.80/x
  3. Step 3: Cross multiply
    2,189.70x = 3,274.58 × 1,634.80
  4. Step 4: Simplify right side
    2,189.70x = 5,353,285.43
  5. Step 5: Solve for x
    x = 5,353,285.43/2,189.70
  6. Step 6: Final answer
    x = 2,444.75

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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.