Home / 3,609.75-5,415.22-1,145.16

Finding the Fourth Proportional to 3,609.75, 5,415.22 and 1,145.16

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Solution

The fourth proportional to 3,609.75, 5,415.22 and 1,145.16 is: 1,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.75 : 5,415.22 = 1,145.16 : x
  2. Step 2: Convert to fraction form
    3,609.75/5,415.22 = 1,145.16/x
  3. Step 3: Cross multiply
    3,609.75x = 5,415.22 × 1,145.16
  4. Step 4: Simplify right side
    3,609.75x = 6,201,270.90
  5. Step 5: Solve for x
    x = 6,201,270.90/3,609.75
  6. Step 6: Final answer
    x = 1,717.92

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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.