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Finding the Fourth Proportional to 6,519.75, 8,994.27 and 3,865.65

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Solution

The fourth proportional to 6,519.75, 8,994.27 and 3,865.65 is: 5,332.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.75 : 8,994.27 = 3,865.65 : x
  2. Step 2: Convert to fraction form
    6,519.75/8,994.27 = 3,865.65/x
  3. Step 3: Cross multiply
    6,519.75x = 8,994.27 × 3,865.65
  4. Step 4: Simplify right side
    6,519.75x = 34,768,654.85
  5. Step 5: Solve for x
    x = 34,768,654.85/6,519.75
  6. Step 6: Final answer
    x = 5,332.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.