Home / 3,182.20-4,393.71-2,122.46

Finding the Fourth Proportional to 3,182.20, 4,393.71 and 2,122.46

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Solution

The fourth proportional to 3,182.20, 4,393.71 and 2,122.46 is: 2,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.20 : 4,393.71 = 2,122.46 : x
  2. Step 2: Convert to fraction form
    3,182.20/4,393.71 = 2,122.46/x
  3. Step 3: Cross multiply
    3,182.20x = 4,393.71 × 2,122.46
  4. Step 4: Simplify right side
    3,182.20x = 9,325,474.10
  5. Step 5: Solve for x
    x = 9,325,474.10/3,182.20
  6. Step 6: Final answer
    x = 2,930.52

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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.