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Finding the Fourth Proportional to 6,356.99, 8,770.61 and 3,839.85

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Solution

The fourth proportional to 6,356.99, 8,770.61 and 3,839.85 is: 5,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,356.99 : 8,770.61 = 3,839.85 : x
  2. Step 2: Convert to fraction form
    6,356.99/8,770.61 = 3,839.85/x
  3. Step 3: Cross multiply
    6,356.99x = 8,770.61 × 3,839.85
  4. Step 4: Simplify right side
    6,356.99x = 33,677,836.41
  5. Step 5: Solve for x
    x = 33,677,836.41/6,356.99
  6. Step 6: Final answer
    x = 5,297.76

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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.