Home / 2,912.41-4,019.08-1,586.09

Finding the Fourth Proportional to 2,912.41, 4,019.08 and 1,586.09

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Solution

The fourth proportional to 2,912.41, 4,019.08 and 1,586.09 is: 2,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.41 : 4,019.08 = 1,586.09 : x
  2. Step 2: Convert to fraction form
    2,912.41/4,019.08 = 1,586.09/x
  3. Step 3: Cross multiply
    2,912.41x = 4,019.08 × 1,586.09
  4. Step 4: Simplify right side
    2,912.41x = 6,374,622.60
  5. Step 5: Solve for x
    x = 6,374,622.60/2,912.41
  6. Step 6: Final answer
    x = 2,188.78

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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.