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Finding the Fourth Proportional to 5,786.87, 8,680.71 and 2,864.39

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Solution

The fourth proportional to 5,786.87, 8,680.71 and 2,864.39 is: 4,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,786.87 : 8,680.71 = 2,864.39 : x
  2. Step 2: Convert to fraction form
    5,786.87/8,680.71 = 2,864.39/x
  3. Step 3: Cross multiply
    5,786.87x = 8,680.71 × 2,864.39
  4. Step 4: Simplify right side
    5,786.87x = 24,864,955.08
  5. Step 5: Solve for x
    x = 24,864,955.08/5,786.87
  6. Step 6: Final answer
    x = 4,296.79

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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.