Home / 6,480.48-8,940.60-3,960.57

Finding the Fourth Proportional to 6,480.48, 8,940.60 and 3,960.57

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Solution

The fourth proportional to 6,480.48, 8,940.60 and 3,960.57 is: 5,464.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.48 : 8,940.60 = 3,960.57 : x
  2. Step 2: Convert to fraction form
    6,480.48/8,940.60 = 3,960.57/x
  3. Step 3: Cross multiply
    6,480.48x = 8,940.60 × 3,960.57
  4. Step 4: Simplify right side
    6,480.48x = 35,409,872.14
  5. Step 5: Solve for x
    x = 35,409,872.14/6,480.48
  6. Step 6: Final answer
    x = 5,464.08

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1.5x scale

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.