Home / 3,826.80-5,741.28-1,361.88

Finding the Fourth Proportional to 3,826.80, 5,741.28 and 1,361.88

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Solution

The fourth proportional to 3,826.80, 5,741.28 and 1,361.88 is: 2,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.80 : 5,741.28 = 1,361.88 : x
  2. Step 2: Convert to fraction form
    3,826.80/5,741.28 = 1,361.88/x
  3. Step 3: Cross multiply
    3,826.80x = 5,741.28 × 1,361.88
  4. Step 4: Simplify right side
    3,826.80x = 7,818,934.41
  5. Step 5: Solve for x
    x = 7,818,934.41/3,826.80
  6. Step 6: Final answer
    x = 2,043.20

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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.