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Finding the Fourth Proportional to 5,789.34, 8,680.77 and 1,891.62

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Solution

The fourth proportional to 5,789.34, 8,680.77 and 1,891.62 is: 2,836.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,789.34 : 8,680.77 = 1,891.62 : x
  2. Step 2: Convert to fraction form
    5,789.34/8,680.77 = 1,891.62/x
  3. Step 3: Cross multiply
    5,789.34x = 8,680.77 × 1,891.62
  4. Step 4: Simplify right side
    5,789.34x = 16,420,718.15
  5. Step 5: Solve for x
    x = 16,420,718.15/5,789.34
  6. Step 6: Final answer
    x = 2,836.37

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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.