Home / 2,835.38-3,912.84-1,576.55

Finding the Fourth Proportional to 2,835.38, 3,912.84 and 1,576.55

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Solution

The fourth proportional to 2,835.38, 3,912.84 and 1,576.55 is: 2,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.38 : 3,912.84 = 1,576.55 : x
  2. Step 2: Convert to fraction form
    2,835.38/3,912.84 = 1,576.55/x
  3. Step 3: Cross multiply
    2,835.38x = 3,912.84 × 1,576.55
  4. Step 4: Simplify right side
    2,835.38x = 6,168,797.68
  5. Step 5: Solve for x
    x = 6,168,797.68/2,835.38
  6. Step 6: Final answer
    x = 2,175.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.