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Finding the Fourth Proportional to 8,797.64, 13,200.78 and 3,605

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Solution

The fourth proportional to 8,797.64, 13,200.78 and 3,605 is: 5,409.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.64 : 13,200.78 = 3,605 : x
  2. Step 2: Convert to fraction form
    8,797.64/13,200.78 = 3,605/x
  3. Step 3: Cross multiply
    8,797.64x = 13,200.78 × 3,605
  4. Step 4: Simplify right side
    8,797.64x = 47,588,811.90
  5. Step 5: Solve for x
    x = 47,588,811.90/8,797.64
  6. Step 6: Final answer
    x = 5,409.27

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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.