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Finding the Fourth Proportional to 5,553.60, 8,320.80 and 3,604.80

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Solution

The fourth proportional to 5,553.60, 8,320.80 and 3,604.80 is: 5,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.60 : 8,320.80 = 3,604.80 : x
  2. Step 2: Convert to fraction form
    5,553.60/8,320.80 = 3,604.80/x
  3. Step 3: Cross multiply
    5,553.60x = 8,320.80 × 3,604.80
  4. Step 4: Simplify right side
    5,553.60x = 29,994,819.84
  5. Step 5: Solve for x
    x = 29,994,819.84/5,553.60
  6. Step 6: Final answer
    x = 5,400.97

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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.