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Finding the Fourth Proportional to 6,379.07, 8,802.81 and 3,546.63

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Solution

The fourth proportional to 6,379.07, 8,802.81 and 3,546.63 is: 4,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.07 : 8,802.81 = 3,546.63 : x
  2. Step 2: Convert to fraction form
    6,379.07/8,802.81 = 3,546.63/x
  3. Step 3: Cross multiply
    6,379.07x = 8,802.81 × 3,546.63
  4. Step 4: Simplify right side
    6,379.07x = 31,220,310.03
  5. Step 5: Solve for x
    x = 31,220,310.03/6,379.07
  6. Step 6: Final answer
    x = 4,894.18

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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.