Home / 3,219.28-4,440.58-1,959.44

Finding the Fourth Proportional to 3,219.28, 4,440.58 and 1,959.44

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Solution

The fourth proportional to 3,219.28, 4,440.58 and 1,959.44 is: 2,702.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.28 : 4,440.58 = 1,959.44 : x
  2. Step 2: Convert to fraction form
    3,219.28/4,440.58 = 1,959.44/x
  3. Step 3: Cross multiply
    3,219.28x = 4,440.58 × 1,959.44
  4. Step 4: Simplify right side
    3,219.28x = 8,701,050.08
  5. Step 5: Solve for x
    x = 8,701,050.08/3,219.28
  6. Step 6: Final answer
    x = 2,702.79

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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.