Home / 3,361.60-5,042.40-2,195.20

Finding the Fourth Proportional to 3,361.60, 5,042.40 and 2,195.20

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Solution

The fourth proportional to 3,361.60, 5,042.40 and 2,195.20 is: 3,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.60 : 5,042.40 = 2,195.20 : x
  2. Step 2: Convert to fraction form
    3,361.60/5,042.40 = 2,195.20/x
  3. Step 3: Cross multiply
    3,361.60x = 5,042.40 × 2,195.20
  4. Step 4: Simplify right side
    3,361.60x = 11,069,076.48
  5. Step 5: Solve for x
    x = 11,069,076.48/3,361.60
  6. Step 6: Final answer
    x = 3,292.80

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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.