Home / 3,613.75-5,418.19-1,664.89

Finding the Fourth Proportional to 3,613.75, 5,418.19 and 1,664.89

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Solution

The fourth proportional to 3,613.75, 5,418.19 and 1,664.89 is: 2,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.75 : 5,418.19 = 1,664.89 : x
  2. Step 2: Convert to fraction form
    3,613.75/5,418.19 = 1,664.89/x
  3. Step 3: Cross multiply
    3,613.75x = 5,418.19 × 1,664.89
  4. Step 4: Simplify right side
    3,613.75x = 9,020,690.35
  5. Step 5: Solve for x
    x = 9,020,690.35/3,613.75
  6. Step 6: Final answer
    x = 2,496.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.