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Finding the Fourth Proportional to 3,605.07, 5,405.28 and 1,414.02

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Solution

The fourth proportional to 3,605.07, 5,405.28 and 1,414.02 is: 2,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.07 : 5,405.28 = 1,414.02 : x
  2. Step 2: Convert to fraction form
    3,605.07/5,405.28 = 1,414.02/x
  3. Step 3: Cross multiply
    3,605.07x = 5,405.28 × 1,414.02
  4. Step 4: Simplify right side
    3,605.07x = 7,643,174.03
  5. Step 5: Solve for x
    x = 7,643,174.03/3,605.07
  6. Step 6: Final answer
    x = 2,120.12

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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.