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Finding the Fourth Proportional to 6,379.71, 8,804.34 and 3,726.96

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Solution

The fourth proportional to 6,379.71, 8,804.34 and 3,726.96 is: 5,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.71 : 8,804.34 = 3,726.96 : x
  2. Step 2: Convert to fraction form
    6,379.71/8,804.34 = 3,726.96/x
  3. Step 3: Cross multiply
    6,379.71x = 8,804.34 × 3,726.96
  4. Step 4: Simplify right side
    6,379.71x = 32,813,423.01
  5. Step 5: Solve for x
    x = 32,813,423.01/6,379.71
  6. Step 6: Final answer
    x = 5,143.40

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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.