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Finding the Fourth Proportional to 6,380.84, 8,804.97 and 5,910.64

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Solution

The fourth proportional to 6,380.84, 8,804.97 and 5,910.64 is: 8,156.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,380.84 : 8,804.97 = 5,910.64 : x
  2. Step 2: Convert to fraction form
    6,380.84/8,804.97 = 5,910.64/x
  3. Step 3: Cross multiply
    6,380.84x = 8,804.97 × 5,910.64
  4. Step 4: Simplify right side
    6,380.84x = 52,042,985.87
  5. Step 5: Solve for x
    x = 52,042,985.87/6,380.84
  6. Step 6: Final answer
    x = 8,156.13

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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.