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Finding the Fourth Proportional to 4,821.80, 7,230.90 and 1,700.60

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Solution

The fourth proportional to 4,821.80, 7,230.90 and 1,700.60 is: 2,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.80 : 7,230.90 = 1,700.60 : x
  2. Step 2: Convert to fraction form
    4,821.80/7,230.90 = 1,700.60/x
  3. Step 3: Cross multiply
    4,821.80x = 7,230.90 × 1,700.60
  4. Step 4: Simplify right side
    4,821.80x = 12,296,868.54
  5. Step 5: Solve for x
    x = 12,296,868.54/4,821.80
  6. Step 6: Final answer
    x = 2,550.27

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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.