Home / 3,745.20-5,172.54-2,915.88

Finding the Fourth Proportional to 3,745.20, 5,172.54 and 2,915.88

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Solution

The fourth proportional to 3,745.20, 5,172.54 and 2,915.88 is: 4,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.20 : 5,172.54 = 2,915.88 : x
  2. Step 2: Convert to fraction form
    3,745.20/5,172.54 = 2,915.88/x
  3. Step 3: Cross multiply
    3,745.20x = 5,172.54 × 2,915.88
  4. Step 4: Simplify right side
    3,745.20x = 15,082,505.94
  5. Step 5: Solve for x
    x = 15,082,505.94/3,745.20
  6. Step 6: Final answer
    x = 4,027.16

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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.