Home / 3,217.73-4,439.89-1,891.70

Finding the Fourth Proportional to 3,217.73, 4,439.89 and 1,891.70

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Solution

The fourth proportional to 3,217.73, 4,439.89 and 1,891.70 is: 2,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.73 : 4,439.89 = 1,891.70 : x
  2. Step 2: Convert to fraction form
    3,217.73/4,439.89 = 1,891.70/x
  3. Step 3: Cross multiply
    3,217.73x = 4,439.89 × 1,891.70
  4. Step 4: Simplify right side
    3,217.73x = 8,398,939.91
  5. Step 5: Solve for x
    x = 8,398,939.91/3,217.73
  6. Step 6: Final answer
    x = 2,610.21

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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.