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Finding the Fourth Proportional to 3,405, 4,700.82 and 2,575.56

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Solution

The fourth proportional to 3,405, 4,700.82 and 2,575.56 is: 3,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405 : 4,700.82 = 2,575.56 : x
  2. Step 2: Convert to fraction form
    3,405/4,700.82 = 2,575.56/x
  3. Step 3: Cross multiply
    3,405x = 4,700.82 × 2,575.56
  4. Step 4: Simplify right side
    3,405x = 12,107,243.96
  5. Step 5: Solve for x
    x = 12,107,243.96/3,405
  6. Step 6: Final answer
    x = 3,555.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.