Home / 5,945.75-8,915.58-3,171.90

Finding the Fourth Proportional to 5,945.75, 8,915.58 and 3,171.90

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Solution

The fourth proportional to 5,945.75, 8,915.58 and 3,171.90 is: 4,756.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,945.75 : 8,915.58 = 3,171.90 : x
  2. Step 2: Convert to fraction form
    5,945.75/8,915.58 = 3,171.90/x
  3. Step 3: Cross multiply
    5,945.75x = 8,915.58 × 3,171.90
  4. Step 4: Simplify right side
    5,945.75x = 28,279,328.20
  5. Step 5: Solve for x
    x = 28,279,328.20/5,945.75
  6. Step 6: Final answer
    x = 4,756.23

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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.