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Finding the Fourth Proportional to 3,892.09, 5,834.87 and 1,699.15

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Solution

The fourth proportional to 3,892.09, 5,834.87 and 1,699.15 is: 2,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.09 : 5,834.87 = 1,699.15 : x
  2. Step 2: Convert to fraction form
    3,892.09/5,834.87 = 1,699.15/x
  3. Step 3: Cross multiply
    3,892.09x = 5,834.87 × 1,699.15
  4. Step 4: Simplify right side
    3,892.09x = 9,914,319.36
  5. Step 5: Solve for x
    x = 9,914,319.36/3,892.09
  6. Step 6: Final answer
    x = 2,547.30

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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.