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Finding the Fourth Proportional to 5,171.97, 7,138.93 and 2,935.34

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Solution

The fourth proportional to 5,171.97, 7,138.93 and 2,935.34 is: 4,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.97 : 7,138.93 = 2,935.34 : x
  2. Step 2: Convert to fraction form
    5,171.97/7,138.93 = 2,935.34/x
  3. Step 3: Cross multiply
    5,171.97x = 7,138.93 × 2,935.34
  4. Step 4: Simplify right side
    5,171.97x = 20,955,151.09
  5. Step 5: Solve for x
    x = 20,955,151.09/5,171.97
  6. Step 6: Final answer
    x = 4,051.68

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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.