Home / 3,609.90-5,414.85-2,158.38

Finding the Fourth Proportional to 3,609.90, 5,414.85 and 2,158.38

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Solution

The fourth proportional to 3,609.90, 5,414.85 and 2,158.38 is: 3,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.90 : 5,414.85 = 2,158.38 : x
  2. Step 2: Convert to fraction form
    3,609.90/5,414.85 = 2,158.38/x
  3. Step 3: Cross multiply
    3,609.90x = 5,414.85 × 2,158.38
  4. Step 4: Simplify right side
    3,609.90x = 11,687,303.94
  5. Step 5: Solve for x
    x = 11,687,303.94/3,609.90
  6. Step 6: Final answer
    x = 3,237.57

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1.5x scale

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.