Home / 5,180.88-7,152.46-3,857.75

Finding the Fourth Proportional to 5,180.88, 7,152.46 and 3,857.75

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Solution

The fourth proportional to 5,180.88, 7,152.46 and 3,857.75 is: 5,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.88 : 7,152.46 = 3,857.75 : x
  2. Step 2: Convert to fraction form
    5,180.88/7,152.46 = 3,857.75/x
  3. Step 3: Cross multiply
    5,180.88x = 7,152.46 × 3,857.75
  4. Step 4: Simplify right side
    5,180.88x = 27,592,357.16
  5. Step 5: Solve for x
    x = 27,592,357.16/5,180.88
  6. Step 6: Final answer
    x = 5,325.81

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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.