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Finding the Fourth Proportional to 5,757.38, 8,634.24 and 1,860.90

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Solution

The fourth proportional to 5,757.38, 8,634.24 and 1,860.90 is: 2,790.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.38 : 8,634.24 = 1,860.90 : x
  2. Step 2: Convert to fraction form
    5,757.38/8,634.24 = 1,860.90/x
  3. Step 3: Cross multiply
    5,757.38x = 8,634.24 × 1,860.90
  4. Step 4: Simplify right side
    5,757.38x = 16,067,457.22
  5. Step 5: Solve for x
    x = 16,067,457.22/5,757.38
  6. Step 6: Final answer
    x = 2,790.76

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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.