Home / 3,110.20-4,292.22-2,116.60

Finding the Fourth Proportional to 3,110.20, 4,292.22 and 2,116.60

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Solution

The fourth proportional to 3,110.20, 4,292.22 and 2,116.60 is: 2,921.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.20 : 4,292.22 = 2,116.60 : x
  2. Step 2: Convert to fraction form
    3,110.20/4,292.22 = 2,116.60/x
  3. Step 3: Cross multiply
    3,110.20x = 4,292.22 × 2,116.60
  4. Step 4: Simplify right side
    3,110.20x = 9,084,912.85
  5. Step 5: Solve for x
    x = 9,084,912.85/3,110.20
  6. Step 6: Final answer
    x = 2,921.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.