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Finding the Fourth Proportional to 2,704.30, 3,727.56 and 1,958.30

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Solution

The fourth proportional to 2,704.30, 3,727.56 and 1,958.30 is: 2,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,704.30 : 3,727.56 = 1,958.30 : x
  2. Step 2: Convert to fraction form
    2,704.30/3,727.56 = 1,958.30/x
  3. Step 3: Cross multiply
    2,704.30x = 3,727.56 × 1,958.30
  4. Step 4: Simplify right side
    2,704.30x = 7,299,680.75
  5. Step 5: Solve for x
    x = 7,299,680.75/2,704.30
  6. Step 6: Final answer
    x = 2,699.29

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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.