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Finding the Fourth Proportional to 6,929, 10,393.50 and 2,770.88

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Solution

The fourth proportional to 6,929, 10,393.50 and 2,770.88 is: 4,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929 : 10,393.50 = 2,770.88 : x
  2. Step 2: Convert to fraction form
    6,929/10,393.50 = 2,770.88/x
  3. Step 3: Cross multiply
    6,929x = 10,393.50 × 2,770.88
  4. Step 4: Simplify right side
    6,929x = 28,799,141.28
  5. Step 5: Solve for x
    x = 28,799,141.28/6,929
  6. Step 6: Final answer
    x = 4,156.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.