Home / 3,680.36-5,520.70-2,215

Finding the Fourth Proportional to 3,680.36, 5,520.70 and 2,215

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Solution

The fourth proportional to 3,680.36, 5,520.70 and 2,215 is: 3,322.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.36 : 5,520.70 = 2,215 : x
  2. Step 2: Convert to fraction form
    3,680.36/5,520.70 = 2,215/x
  3. Step 3: Cross multiply
    3,680.36x = 5,520.70 × 2,215
  4. Step 4: Simplify right side
    3,680.36x = 12,228,350.50
  5. Step 5: Solve for x
    x = 12,228,350.50/3,680.36
  6. Step 6: Final answer
    x = 3,322.60

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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.