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Finding the Fourth Proportional to 6,957, 10,436.40 and 3,257.28

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Solution

The fourth proportional to 6,957, 10,436.40 and 3,257.28 is: 4,886.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,957 : 10,436.40 = 3,257.28 : x
  2. Step 2: Convert to fraction form
    6,957/10,436.40 = 3,257.28/x
  3. Step 3: Cross multiply
    6,957x = 10,436.40 × 3,257.28
  4. Step 4: Simplify right side
    6,957x = 33,994,276.99
  5. Step 5: Solve for x
    x = 33,994,276.99/6,957
  6. Step 6: Final answer
    x = 4,886.34

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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.