Home / 1,613.15-2,227.35-1,239.54

Finding the Fourth Proportional to 1,613.15, 2,227.35 and 1,239.54

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Solution

The fourth proportional to 1,613.15, 2,227.35 and 1,239.54 is: 1,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613.15 : 2,227.35 = 1,239.54 : x
  2. Step 2: Convert to fraction form
    1,613.15/2,227.35 = 1,239.54/x
  3. Step 3: Cross multiply
    1,613.15x = 2,227.35 × 1,239.54
  4. Step 4: Simplify right side
    1,613.15x = 2,760,878.74
  5. Step 5: Solve for x
    x = 2,760,878.74/1,613.15
  6. Step 6: Final answer
    x = 1,711.48

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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.