Home / 2,180.88-3,271.34-1,084.80

Finding the Fourth Proportional to 2,180.88, 3,271.34 and 1,084.80

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Solution

The fourth proportional to 2,180.88, 3,271.34 and 1,084.80 is: 1,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.88 : 3,271.34 = 1,084.80 : x
  2. Step 2: Convert to fraction form
    2,180.88/3,271.34 = 1,084.80/x
  3. Step 3: Cross multiply
    2,180.88x = 3,271.34 × 1,084.80
  4. Step 4: Simplify right side
    2,180.88x = 3,548,749.63
  5. Step 5: Solve for x
    x = 3,548,749.63/2,180.88
  6. Step 6: Final answer
    x = 1,627.21

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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.