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Finding the Fourth Proportional to 7,097.30, 9,794 and 3,953.42

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Solution

The fourth proportional to 7,097.30, 9,794 and 3,953.42 is: 5,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,097.30 : 9,794 = 3,953.42 : x
  2. Step 2: Convert to fraction form
    7,097.30/9,794 = 3,953.42/x
  3. Step 3: Cross multiply
    7,097.30x = 9,794 × 3,953.42
  4. Step 4: Simplify right side
    7,097.30x = 38,719,795.48
  5. Step 5: Solve for x
    x = 38,719,795.48/7,097.30
  6. Step 6: Final answer
    x = 5,455.57

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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.