Home / 5,132.57-7,076.87-3,620.38

Finding the Fourth Proportional to 5,132.57, 7,076.87 and 3,620.38

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Solution

The fourth proportional to 5,132.57, 7,076.87 and 3,620.38 is: 4,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.57 : 7,076.87 = 3,620.38 : x
  2. Step 2: Convert to fraction form
    5,132.57/7,076.87 = 3,620.38/x
  3. Step 3: Cross multiply
    5,132.57x = 7,076.87 × 3,620.38
  4. Step 4: Simplify right side
    5,132.57x = 25,620,923.23
  5. Step 5: Solve for x
    x = 25,620,923.23/5,132.57
  6. Step 6: Final answer
    x = 4,991.84

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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.