Home / 3,287.72-4,926.88-2,311.80

Finding the Fourth Proportional to 3,287.72, 4,926.88 and 2,311.80

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Solution

The fourth proportional to 3,287.72, 4,926.88 and 2,311.80 is: 3,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.72 : 4,926.88 = 2,311.80 : x
  2. Step 2: Convert to fraction form
    3,287.72/4,926.88 = 2,311.80/x
  3. Step 3: Cross multiply
    3,287.72x = 4,926.88 × 2,311.80
  4. Step 4: Simplify right side
    3,287.72x = 11,389,961.18
  5. Step 5: Solve for x
    x = 11,389,961.18/3,287.72
  6. Step 6: Final answer
    x = 3,464.40

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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.