Home / 5,171.82-7,133.21-3,581.13

Finding the Fourth Proportional to 5,171.82, 7,133.21 and 3,581.13

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Solution

The fourth proportional to 5,171.82, 7,133.21 and 3,581.13 is: 4,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.82 : 7,133.21 = 3,581.13 : x
  2. Step 2: Convert to fraction form
    5,171.82/7,133.21 = 3,581.13/x
  3. Step 3: Cross multiply
    5,171.82x = 7,133.21 × 3,581.13
  4. Step 4: Simplify right side
    5,171.82x = 25,544,934.42
  5. Step 5: Solve for x
    x = 25,544,934.42/5,171.82
  6. Step 6: Final answer
    x = 4,939.25

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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.