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Finding the Fourth Proportional to 3,891.75, 5,833.57 and 2,914.89

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Solution

The fourth proportional to 3,891.75, 5,833.57 and 2,914.89 is: 4,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.75 : 5,833.57 = 2,914.89 : x
  2. Step 2: Convert to fraction form
    3,891.75/5,833.57 = 2,914.89/x
  3. Step 3: Cross multiply
    3,891.75x = 5,833.57 × 2,914.89
  4. Step 4: Simplify right side
    3,891.75x = 17,004,214.86
  5. Step 5: Solve for x
    x = 17,004,214.86/3,891.75
  6. Step 6: Final answer
    x = 4,369.30

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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.