Home / 3,122.12-4,304.58-2,282.12

Finding the Fourth Proportional to 3,122.12, 4,304.58 and 2,282.12

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Solution

The fourth proportional to 3,122.12, 4,304.58 and 2,282.12 is: 3,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.12 : 4,304.58 = 2,282.12 : x
  2. Step 2: Convert to fraction form
    3,122.12/4,304.58 = 2,282.12/x
  3. Step 3: Cross multiply
    3,122.12x = 4,304.58 × 2,282.12
  4. Step 4: Simplify right side
    3,122.12x = 9,823,568.11
  5. Step 5: Solve for x
    x = 9,823,568.11/3,122.12
  6. Step 6: Final answer
    x = 3,146.44

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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.