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Finding the Fourth Proportional to 5,805.75, 8,704.76 and 2,107.51

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Solution

The fourth proportional to 5,805.75, 8,704.76 and 2,107.51 is: 3,159.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,805.75 : 8,704.76 = 2,107.51 : x
  2. Step 2: Convert to fraction form
    5,805.75/8,704.76 = 2,107.51/x
  3. Step 3: Cross multiply
    5,805.75x = 8,704.76 × 2,107.51
  4. Step 4: Simplify right side
    5,805.75x = 18,345,336.45
  5. Step 5: Solve for x
    x = 18,345,336.45/5,805.75
  6. Step 6: Final answer
    x = 3,159.85

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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.