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Finding the Fourth Proportional to 8,608.02, 12,910.81 and 2,763.87

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Solution

The fourth proportional to 8,608.02, 12,910.81 and 2,763.87 is: 4,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.02 : 12,910.81 = 2,763.87 : x
  2. Step 2: Convert to fraction form
    8,608.02/12,910.81 = 2,763.87/x
  3. Step 3: Cross multiply
    8,608.02x = 12,910.81 × 2,763.87
  4. Step 4: Simplify right side
    8,608.02x = 35,683,800.43
  5. Step 5: Solve for x
    x = 35,683,800.43/8,608.02
  6. Step 6: Final answer
    x = 4,145.41

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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.