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Finding the Fourth Proportional to 3,857.93, 5,780.51 and 3,241.92

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Solution

The fourth proportional to 3,857.93, 5,780.51 and 3,241.92 is: 4,857.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.93 : 5,780.51 = 3,241.92 : x
  2. Step 2: Convert to fraction form
    3,857.93/5,780.51 = 3,241.92/x
  3. Step 3: Cross multiply
    3,857.93x = 5,780.51 × 3,241.92
  4. Step 4: Simplify right side
    3,857.93x = 18,739,950.98
  5. Step 5: Solve for x
    x = 18,739,950.98/3,857.93
  6. Step 6: Final answer
    x = 4,857.51

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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.