Home / 3,604.20-5,405.40-1,382.55

Finding the Fourth Proportional to 3,604.20, 5,405.40 and 1,382.55

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Solution

The fourth proportional to 3,604.20, 5,405.40 and 1,382.55 is: 2,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.20 : 5,405.40 = 1,382.55 : x
  2. Step 2: Convert to fraction form
    3,604.20/5,405.40 = 1,382.55/x
  3. Step 3: Cross multiply
    3,604.20x = 5,405.40 × 1,382.55
  4. Step 4: Simplify right side
    3,604.20x = 7,473,235.77
  5. Step 5: Solve for x
    x = 7,473,235.77/3,604.20
  6. Step 6: Final answer
    x = 2,073.48

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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.