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Finding the Fourth Proportional to 7,054.28, 9,734.88 and 3,910.46

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Solution

The fourth proportional to 7,054.28, 9,734.88 and 3,910.46 is: 5,396.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,054.28 : 9,734.88 = 3,910.46 : x
  2. Step 2: Convert to fraction form
    7,054.28/9,734.88 = 3,910.46/x
  3. Step 3: Cross multiply
    7,054.28x = 9,734.88 × 3,910.46
  4. Step 4: Simplify right side
    7,054.28x = 38,067,858.84
  5. Step 5: Solve for x
    x = 38,067,858.84/7,054.28
  6. Step 6: Final answer
    x = 5,396.42

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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.