Home / 5,609.80-8,418.95-3,146.69

Finding the Fourth Proportional to 5,609.80, 8,418.95 and 3,146.69

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Solution

The fourth proportional to 5,609.80, 8,418.95 and 3,146.69 is: 4,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.80 : 8,418.95 = 3,146.69 : x
  2. Step 2: Convert to fraction form
    5,609.80/8,418.95 = 3,146.69/x
  3. Step 3: Cross multiply
    5,609.80x = 8,418.95 × 3,146.69
  4. Step 4: Simplify right side
    5,609.80x = 26,491,854.69
  5. Step 5: Solve for x
    x = 26,491,854.69/5,609.80
  6. Step 6: Final answer
    x = 4,722.43

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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.