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Finding the Fourth Proportional to 6,379.50, 8,804.66 and 3,728.37

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Solution

The fourth proportional to 6,379.50, 8,804.66 and 3,728.37 is: 5,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.50 : 8,804.66 = 3,728.37 : x
  2. Step 2: Convert to fraction form
    6,379.50/8,804.66 = 3,728.37/x
  3. Step 3: Cross multiply
    6,379.50x = 8,804.66 × 3,728.37
  4. Step 4: Simplify right side
    6,379.50x = 32,827,011.56
  5. Step 5: Solve for x
    x = 32,827,011.56/6,379.50
  6. Step 6: Final answer
    x = 5,145.70

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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.