Home / 3,609.77-5,416.88-1,418.11

Finding the Fourth Proportional to 3,609.77, 5,416.88 and 1,418.11

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Solution

The fourth proportional to 3,609.77, 5,416.88 and 1,418.11 is: 2,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.77 : 5,416.88 = 1,418.11 : x
  2. Step 2: Convert to fraction form
    3,609.77/5,416.88 = 1,418.11/x
  3. Step 3: Cross multiply
    3,609.77x = 5,416.88 × 1,418.11
  4. Step 4: Simplify right side
    3,609.77x = 7,681,711.06
  5. Step 5: Solve for x
    x = 7,681,711.06/3,609.77
  6. Step 6: Final answer
    x = 2,128.04

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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.