Home / 5,422.14-7,479.68-3,431.97

Finding the Fourth Proportional to 5,422.14, 7,479.68 and 3,431.97

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Solution

The fourth proportional to 5,422.14, 7,479.68 and 3,431.97 is: 4,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.14 : 7,479.68 = 3,431.97 : x
  2. Step 2: Convert to fraction form
    5,422.14/7,479.68 = 3,431.97/x
  3. Step 3: Cross multiply
    5,422.14x = 7,479.68 × 3,431.97
  4. Step 4: Simplify right side
    5,422.14x = 25,670,020.21
  5. Step 5: Solve for x
    x = 25,670,020.21/5,422.14
  6. Step 6: Final answer
    x = 4,734.30

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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.