Home / 3,540.65-5,310.66-2,153.62

Finding the Fourth Proportional to 3,540.65, 5,310.66 and 2,153.62

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Solution

The fourth proportional to 3,540.65, 5,310.66 and 2,153.62 is: 3,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.65 : 5,310.66 = 2,153.62 : x
  2. Step 2: Convert to fraction form
    3,540.65/5,310.66 = 2,153.62/x
  3. Step 3: Cross multiply
    3,540.65x = 5,310.66 × 2,153.62
  4. Step 4: Simplify right side
    3,540.65x = 11,437,158.30
  5. Step 5: Solve for x
    x = 11,437,158.30/3,540.65
  6. Step 6: Final answer
    x = 3,230.25

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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.