Home / 2,822.28-4,235.04-1,361.40

Finding the Fourth Proportional to 2,822.28, 4,235.04 and 1,361.40

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Solution

The fourth proportional to 2,822.28, 4,235.04 and 1,361.40 is: 2,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.28 : 4,235.04 = 1,361.40 : x
  2. Step 2: Convert to fraction form
    2,822.28/4,235.04 = 1,361.40/x
  3. Step 3: Cross multiply
    2,822.28x = 4,235.04 × 1,361.40
  4. Step 4: Simplify right side
    2,822.28x = 5,765,583.46
  5. Step 5: Solve for x
    x = 5,765,583.46/2,822.28
  6. Step 6: Final answer
    x = 2,042.88

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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.