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Finding the Fourth Proportional to 6,801.57, 10,200.99 and 2,640.80

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Solution

The fourth proportional to 6,801.57, 10,200.99 and 2,640.80 is: 3,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,801.57 : 10,200.99 = 2,640.80 : x
  2. Step 2: Convert to fraction form
    6,801.57/10,200.99 = 2,640.80/x
  3. Step 3: Cross multiply
    6,801.57x = 10,200.99 × 2,640.80
  4. Step 4: Simplify right side
    6,801.57x = 26,938,794.94
  5. Step 5: Solve for x
    x = 26,938,794.94/6,801.57
  6. Step 6: Final answer
    x = 3,960.67

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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.