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Finding the Fourth Proportional to 6,519.76, 9,774.78 and 3,922.09

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Solution

The fourth proportional to 6,519.76, 9,774.78 and 3,922.09 is: 5,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.76 : 9,774.78 = 3,922.09 : x
  2. Step 2: Convert to fraction form
    6,519.76/9,774.78 = 3,922.09/x
  3. Step 3: Cross multiply
    6,519.76x = 9,774.78 × 3,922.09
  4. Step 4: Simplify right side
    6,519.76x = 38,337,566.89
  5. Step 5: Solve for x
    x = 38,337,566.89/6,519.76
  6. Step 6: Final answer
    x = 5,880.21

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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.