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Finding the Fourth Proportional to 8,604.48, 12,912.51 and 3,057.90

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Solution

The fourth proportional to 8,604.48, 12,912.51 and 3,057.90 is: 4,588.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.48 : 12,912.51 = 3,057.90 : x
  2. Step 2: Convert to fraction form
    8,604.48/12,912.51 = 3,057.90/x
  3. Step 3: Cross multiply
    8,604.48x = 12,912.51 × 3,057.90
  4. Step 4: Simplify right side
    8,604.48x = 39,485,200.01
  5. Step 5: Solve for x
    x = 39,485,200.01/8,604.48
  6. Step 6: Final answer
    x = 4,588.91

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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.