Home / 7,180.94-10,771.41-1,916.15

Finding the Fourth Proportional to 7,180.94, 10,771.41 and 1,916.15

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Solution

The fourth proportional to 7,180.94, 10,771.41 and 1,916.15 is: 2,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.94 : 10,771.41 = 1,916.15 : x
  2. Step 2: Convert to fraction form
    7,180.94/10,771.41 = 1,916.15/x
  3. Step 3: Cross multiply
    7,180.94x = 10,771.41 × 1,916.15
  4. Step 4: Simplify right side
    7,180.94x = 20,639,583.41
  5. Step 5: Solve for x
    x = 20,639,583.41/7,180.94
  6. Step 6: Final answer
    x = 2,874.22

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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.