Home / 5,174.68-7,142.62-3,519.64

Finding the Fourth Proportional to 5,174.68, 7,142.62 and 3,519.64

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Solution

The fourth proportional to 5,174.68, 7,142.62 and 3,519.64 is: 4,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.68 : 7,142.62 = 3,519.64 : x
  2. Step 2: Convert to fraction form
    5,174.68/7,142.62 = 3,519.64/x
  3. Step 3: Cross multiply
    5,174.68x = 7,142.62 × 3,519.64
  4. Step 4: Simplify right side
    5,174.68x = 25,139,451.06
  5. Step 5: Solve for x
    x = 25,139,451.06/5,174.68
  6. Step 6: Final answer
    x = 4,858.17

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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.