Home / 3,581.40-5,369.40-2,280.36

Finding the Fourth Proportional to 3,581.40, 5,369.40 and 2,280.36

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Solution

The fourth proportional to 3,581.40, 5,369.40 and 2,280.36 is: 3,418.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.40 : 5,369.40 = 2,280.36 : x
  2. Step 2: Convert to fraction form
    3,581.40/5,369.40 = 2,280.36/x
  3. Step 3: Cross multiply
    3,581.40x = 5,369.40 × 2,280.36
  4. Step 4: Simplify right side
    3,581.40x = 12,244,164.98
  5. Step 5: Solve for x
    x = 12,244,164.98/3,581.40
  6. Step 6: Final answer
    x = 3,418.82

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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.