Home / 3,121.74-4,679.70-2,022.84

Finding the Fourth Proportional to 3,121.74, 4,679.70 and 2,022.84

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Solution

The fourth proportional to 3,121.74, 4,679.70 and 2,022.84 is: 3,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.74 : 4,679.70 = 2,022.84 : x
  2. Step 2: Convert to fraction form
    3,121.74/4,679.70 = 2,022.84/x
  3. Step 3: Cross multiply
    3,121.74x = 4,679.70 × 2,022.84
  4. Step 4: Simplify right side
    3,121.74x = 9,466,284.35
  5. Step 5: Solve for x
    x = 9,466,284.35/3,121.74
  6. Step 6: Final answer
    x = 3,032.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.