Home / 3,586.12-5,375.94-1,276

Finding the Fourth Proportional to 3,586.12, 5,375.94 and 1,276

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Solution

The fourth proportional to 3,586.12, 5,375.94 and 1,276 is: 1,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,586.12 : 5,375.94 = 1,276 : x
  2. Step 2: Convert to fraction form
    3,586.12/5,375.94 = 1,276/x
  3. Step 3: Cross multiply
    3,586.12x = 5,375.94 × 1,276
  4. Step 4: Simplify right side
    3,586.12x = 6,859,699.44
  5. Step 5: Solve for x
    x = 6,859,699.44/3,586.12
  6. Step 6: Final answer
    x = 1,912.85

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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.