Home / 2,912.35-4,019.09-1,586.07

Finding the Fourth Proportional to 2,912.35, 4,019.09 and 1,586.07

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Solution

The fourth proportional to 2,912.35, 4,019.09 and 1,586.07 is: 2,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.35 : 4,019.09 = 1,586.07 : x
  2. Step 2: Convert to fraction form
    2,912.35/4,019.09 = 1,586.07/x
  3. Step 3: Cross multiply
    2,912.35x = 4,019.09 × 1,586.07
  4. Step 4: Simplify right side
    2,912.35x = 6,374,558.08
  5. Step 5: Solve for x
    x = 6,374,558.08/2,912.35
  6. Step 6: Final answer
    x = 2,188.80

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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.