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Finding the Fourth Proportional to 6,379.56, 9,588.86 and 5,290.92

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Solution

The fourth proportional to 6,379.56, 9,588.86 and 5,290.92 is: 7,952.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.56 : 9,588.86 = 5,290.92 : x
  2. Step 2: Convert to fraction form
    6,379.56/9,588.86 = 5,290.92/x
  3. Step 3: Cross multiply
    6,379.56x = 9,588.86 × 5,290.92
  4. Step 4: Simplify right side
    6,379.56x = 50,733,891.15
  5. Step 5: Solve for x
    x = 50,733,891.15/6,379.56
  6. Step 6: Final answer
    x = 7,952.57

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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.