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Finding the Fourth Proportional to 7,098.30, 9,795.39 and 3,954.42

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Solution

The fourth proportional to 7,098.30, 9,795.39 and 3,954.42 is: 5,456.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.30 : 9,795.39 = 3,954.42 : x
  2. Step 2: Convert to fraction form
    7,098.30/9,795.39 = 3,954.42/x
  3. Step 3: Cross multiply
    7,098.30x = 9,795.39 × 3,954.42
  4. Step 4: Simplify right side
    7,098.30x = 38,735,086.12
  5. Step 5: Solve for x
    x = 38,735,086.12/7,098.30
  6. Step 6: Final answer
    x = 5,456.95

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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.