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Finding the Fourth Proportional to 4,832, 7,245.90 and 1,669.77

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Solution

The fourth proportional to 4,832, 7,245.90 and 1,669.77 is: 2,503.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,832 : 7,245.90 = 1,669.77 : x
  2. Step 2: Convert to fraction form
    4,832/7,245.90 = 1,669.77/x
  3. Step 3: Cross multiply
    4,832x = 7,245.90 × 1,669.77
  4. Step 4: Simplify right side
    4,832x = 12,098,986.44
  5. Step 5: Solve for x
    x = 12,098,986.44/4,832
  6. Step 6: Final answer
    x = 2,503.93

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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.