Home / 3,601.72-5,398.87-1,380.03

Finding the Fourth Proportional to 3,601.72, 5,398.87 and 1,380.03

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Solution

The fourth proportional to 3,601.72, 5,398.87 and 1,380.03 is: 2,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.72 : 5,398.87 = 1,380.03 : x
  2. Step 2: Convert to fraction form
    3,601.72/5,398.87 = 1,380.03/x
  3. Step 3: Cross multiply
    3,601.72x = 5,398.87 × 1,380.03
  4. Step 4: Simplify right side
    3,601.72x = 7,450,602.57
  5. Step 5: Solve for x
    x = 7,450,602.57/3,601.72
  6. Step 6: Final answer
    x = 2,068.62

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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.