Home / 1,613.20-2,227.97-1,299.50

Finding the Fourth Proportional to 1,613.20, 2,227.97 and 1,299.50

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Solution

The fourth proportional to 1,613.20, 2,227.97 and 1,299.50 is: 1,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.20 : 2,227.97 = 1,299.50 : x
  2. Step 2: Convert to fraction form
    1,613.20/2,227.97 = 1,299.50/x
  3. Step 3: Cross multiply
    1,613.20x = 2,227.97 × 1,299.50
  4. Step 4: Simplify right side
    1,613.20x = 2,895,246.09
  5. Step 5: Solve for x
    x = 2,895,246.09/1,613.20
  6. Step 6: Final answer
    x = 1,794.73

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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.