Home / 3,715.72-5,571.08-2,231.60

Finding the Fourth Proportional to 3,715.72, 5,571.08 and 2,231.60

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Solution

The fourth proportional to 3,715.72, 5,571.08 and 2,231.60 is: 3,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.72 : 5,571.08 = 2,231.60 : x
  2. Step 2: Convert to fraction form
    3,715.72/5,571.08 = 2,231.60/x
  3. Step 3: Cross multiply
    3,715.72x = 5,571.08 × 2,231.60
  4. Step 4: Simplify right side
    3,715.72x = 12,432,422.13
  5. Step 5: Solve for x
    x = 12,432,422.13/3,715.72
  6. Step 6: Final answer
    x = 3,345.90

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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.