Home / 3,576.12-5,363.64-1,385.88

Finding the Fourth Proportional to 3,576.12, 5,363.64 and 1,385.88

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Solution

The fourth proportional to 3,576.12, 5,363.64 and 1,385.88 is: 2,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.12 : 5,363.64 = 1,385.88 : x
  2. Step 2: Convert to fraction form
    3,576.12/5,363.64 = 1,385.88/x
  3. Step 3: Cross multiply
    3,576.12x = 5,363.64 × 1,385.88
  4. Step 4: Simplify right side
    3,576.12x = 7,433,361.40
  5. Step 5: Solve for x
    x = 7,433,361.40/3,576.12
  6. Step 6: Final answer
    x = 2,078.61

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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.