Home / 5,183.88-7,153.92-2,915.60

Finding the Fourth Proportional to 5,183.88, 7,153.92 and 2,915.60

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Solution

The fourth proportional to 5,183.88, 7,153.92 and 2,915.60 is: 4,023.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,183.88 : 7,153.92 = 2,915.60 : x
  2. Step 2: Convert to fraction form
    5,183.88/7,153.92 = 2,915.60/x
  3. Step 3: Cross multiply
    5,183.88x = 7,153.92 × 2,915.60
  4. Step 4: Simplify right side
    5,183.88x = 20,857,969.15
  5. Step 5: Solve for x
    x = 20,857,969.15/5,183.88
  6. Step 6: Final answer
    x = 4,023.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.