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Finding the Fourth Proportional to 3,583.07, 5,372.37 and 1,391.30

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Solution

The fourth proportional to 3,583.07, 5,372.37 and 1,391.30 is: 2,086.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.07 : 5,372.37 = 1,391.30 : x
  2. Step 2: Convert to fraction form
    3,583.07/5,372.37 = 1,391.30/x
  3. Step 3: Cross multiply
    3,583.07x = 5,372.37 × 1,391.30
  4. Step 4: Simplify right side
    3,583.07x = 7,474,551.52
  5. Step 5: Solve for x
    x = 7,474,551.52/3,583.07
  6. Step 6: Final answer
    x = 2,086.08

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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.