Home / 3,836.63-5,756.33-1,890.20

Finding the Fourth Proportional to 3,836.63, 5,756.33 and 1,890.20

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Solution

The fourth proportional to 3,836.63, 5,756.33 and 1,890.20 is: 2,835.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.63 : 5,756.33 = 1,890.20 : x
  2. Step 2: Convert to fraction form
    3,836.63/5,756.33 = 1,890.20/x
  3. Step 3: Cross multiply
    3,836.63x = 5,756.33 × 1,890.20
  4. Step 4: Simplify right side
    3,836.63x = 10,880,576.73
  5. Step 5: Solve for x
    x = 10,880,576.73/3,836.63
  6. Step 6: Final answer
    x = 2,835.98

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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.