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Finding the Fourth Proportional to 6,379.86, 8,804.64 and 3,585.54

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Solution

The fourth proportional to 6,379.86, 8,804.64 and 3,585.54 is: 4,948.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.86 : 8,804.64 = 3,585.54 : x
  2. Step 2: Convert to fraction form
    6,379.86/8,804.64 = 3,585.54/x
  3. Step 3: Cross multiply
    6,379.86x = 8,804.64 × 3,585.54
  4. Step 4: Simplify right side
    6,379.86x = 31,569,388.91
  5. Step 5: Solve for x
    x = 31,569,388.91/6,379.86
  6. Step 6: Final answer
    x = 4,948.29

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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.