Home / 3,278.28-4,912.56-2,586.60

Finding the Fourth Proportional to 3,278.28, 4,912.56 and 2,586.60

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Solution

The fourth proportional to 3,278.28, 4,912.56 and 2,586.60 is: 3,876.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.28 : 4,912.56 = 2,586.60 : x
  2. Step 2: Convert to fraction form
    3,278.28/4,912.56 = 2,586.60/x
  3. Step 3: Cross multiply
    3,278.28x = 4,912.56 × 2,586.60
  4. Step 4: Simplify right side
    3,278.28x = 12,706,827.70
  5. Step 5: Solve for x
    x = 12,706,827.70/3,278.28
  6. Step 6: Final answer
    x = 3,876.07

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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.