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Finding the Fourth Proportional to 6,640.63, 9,960.59 and 2,480.31

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Solution

The fourth proportional to 6,640.63, 9,960.59 and 2,480.31 is: 3,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.63 : 9,960.59 = 2,480.31 : x
  2. Step 2: Convert to fraction form
    6,640.63/9,960.59 = 2,480.31/x
  3. Step 3: Cross multiply
    6,640.63x = 9,960.59 × 2,480.31
  4. Step 4: Simplify right side
    6,640.63x = 24,705,357.18
  5. Step 5: Solve for x
    x = 24,705,357.18/6,640.63
  6. Step 6: Final answer
    x = 3,720.33

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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.