Home / 1,613.14-2,229.06-1,297.78

Finding the Fourth Proportional to 1,613.14, 2,229.06 and 1,297.78

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Solution

The fourth proportional to 1,613.14, 2,229.06 and 1,297.78 is: 1,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.14 : 2,229.06 = 1,297.78 : x
  2. Step 2: Convert to fraction form
    1,613.14/2,229.06 = 1,297.78/x
  3. Step 3: Cross multiply
    1,613.14x = 2,229.06 × 1,297.78
  4. Step 4: Simplify right side
    1,613.14x = 2,892,829.49
  5. Step 5: Solve for x
    x = 2,892,829.49/1,613.14
  6. Step 6: Final answer
    x = 1,793.29

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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.