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Finding the Fourth Proportional to 6,384, 8,810.88 and 3,901.44

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Solution

The fourth proportional to 6,384, 8,810.88 and 3,901.44 is: 5,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384 : 8,810.88 = 3,901.44 : x
  2. Step 2: Convert to fraction form
    6,384/8,810.88 = 3,901.44/x
  3. Step 3: Cross multiply
    6,384x = 8,810.88 × 3,901.44
  4. Step 4: Simplify right side
    6,384x = 34,375,119.67
  5. Step 5: Solve for x
    x = 34,375,119.67/6,384
  6. Step 6: Final answer
    x = 5,384.57

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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.