Home / 2,051.22-3,076.38-818.30

Finding the Fourth Proportional to 2,051.22, 3,076.38 and 818.30

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Solution

The fourth proportional to 2,051.22, 3,076.38 and 818.30 is: 1,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.22 : 3,076.38 = 818.30 : x
  2. Step 2: Convert to fraction form
    2,051.22/3,076.38 = 818.30/x
  3. Step 3: Cross multiply
    2,051.22x = 3,076.38 × 818.30
  4. Step 4: Simplify right side
    2,051.22x = 2,517,409.44
  5. Step 5: Solve for x
    x = 2,517,409.44/2,051.22
  6. Step 6: Final answer
    x = 1,227.27

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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.