Home / 7,639.92-11,453.16-3,940.26

Finding the Fourth Proportional to 7,639.92, 11,453.16 and 3,940.26

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Solution

The fourth proportional to 7,639.92, 11,453.16 and 3,940.26 is: 5,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.92 : 11,453.16 = 3,940.26 : x
  2. Step 2: Convert to fraction form
    7,639.92/11,453.16 = 3,940.26/x
  3. Step 3: Cross multiply
    7,639.92x = 11,453.16 × 3,940.26
  4. Step 4: Simplify right side
    7,639.92x = 45,128,428.22
  5. Step 5: Solve for x
    x = 45,128,428.22/7,639.92
  6. Step 6: Final answer
    x = 5,906.92

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1.5x scale

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.