Home / 3,182.66-4,393.58-2,122.20

Finding the Fourth Proportional to 3,182.66, 4,393.58 and 2,122.20

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Solution

The fourth proportional to 3,182.66, 4,393.58 and 2,122.20 is: 2,929.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.66 : 4,393.58 = 2,122.20 : x
  2. Step 2: Convert to fraction form
    3,182.66/4,393.58 = 2,122.20/x
  3. Step 3: Cross multiply
    3,182.66x = 4,393.58 × 2,122.20
  4. Step 4: Simplify right side
    3,182.66x = 9,324,060.78
  5. Step 5: Solve for x
    x = 9,324,060.78/3,182.66
  6. Step 6: Final answer
    x = 2,929.64

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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.