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Finding the Fourth Proportional to 6,379.05, 8,797.06 and 4,254.78

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Solution

The fourth proportional to 6,379.05, 8,797.06 and 4,254.78 is: 5,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.05 : 8,797.06 = 4,254.78 : x
  2. Step 2: Convert to fraction form
    6,379.05/8,797.06 = 4,254.78/x
  3. Step 3: Cross multiply
    6,379.05x = 8,797.06 × 4,254.78
  4. Step 4: Simplify right side
    6,379.05x = 37,429,519.84
  5. Step 5: Solve for x
    x = 37,429,519.84/6,379.05
  6. Step 6: Final answer
    x = 5,867.57

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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.