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Finding the Fourth Proportional to 7,102.09, 9,801.32 and 3,958.27

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Solution

The fourth proportional to 7,102.09, 9,801.32 and 3,958.27 is: 5,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,102.09 : 9,801.32 = 3,958.27 : x
  2. Step 2: Convert to fraction form
    7,102.09/9,801.32 = 3,958.27/x
  3. Step 3: Cross multiply
    7,102.09x = 9,801.32 × 3,958.27
  4. Step 4: Simplify right side
    7,102.09x = 38,796,270.92
  5. Step 5: Solve for x
    x = 38,796,270.92/7,102.09
  6. Step 6: Final answer
    x = 5,462.66

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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.