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Finding the Fourth Proportional to 3,808.46, 5,708.91 and 1,730

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Solution

The fourth proportional to 3,808.46, 5,708.91 and 1,730 is: 2,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.46 : 5,708.91 = 1,730 : x
  2. Step 2: Convert to fraction form
    3,808.46/5,708.91 = 1,730/x
  3. Step 3: Cross multiply
    3,808.46x = 5,708.91 × 1,730
  4. Step 4: Simplify right side
    3,808.46x = 9,876,414.30
  5. Step 5: Solve for x
    x = 9,876,414.30/3,808.46
  6. Step 6: Final answer
    x = 2,593.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.