Home / 3,609.40-5,407.72-2,508.61

Finding the Fourth Proportional to 3,609.40, 5,407.72 and 2,508.61

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Solution

The fourth proportional to 3,609.40, 5,407.72 and 2,508.61 is: 3,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.40 : 5,407.72 = 2,508.61 : x
  2. Step 2: Convert to fraction form
    3,609.40/5,407.72 = 2,508.61/x
  3. Step 3: Cross multiply
    3,609.40x = 5,407.72 × 2,508.61
  4. Step 4: Simplify right side
    3,609.40x = 13,565,860.47
  5. Step 5: Solve for x
    x = 13,565,860.47/3,609.40
  6. Step 6: Final answer
    x = 3,758.48

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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.