Home / 3,246.27-4,479.59-1,919.75

Finding the Fourth Proportional to 3,246.27, 4,479.59 and 1,919.75

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Solution

The fourth proportional to 3,246.27, 4,479.59 and 1,919.75 is: 2,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.27 : 4,479.59 = 1,919.75 : x
  2. Step 2: Convert to fraction form
    3,246.27/4,479.59 = 1,919.75/x
  3. Step 3: Cross multiply
    3,246.27x = 4,479.59 × 1,919.75
  4. Step 4: Simplify right side
    3,246.27x = 8,599,660.91
  5. Step 5: Solve for x
    x = 8,599,660.91/3,246.27
  6. Step 6: Final answer
    x = 2,649.09

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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.