Home / 5,920.20-8,164.84-3,561.92

Finding the Fourth Proportional to 5,920.20, 8,164.84 and 3,561.92

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Solution

The fourth proportional to 5,920.20, 8,164.84 and 3,561.92 is: 4,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.20 : 8,164.84 = 3,561.92 : x
  2. Step 2: Convert to fraction form
    5,920.20/8,164.84 = 3,561.92/x
  3. Step 3: Cross multiply
    5,920.20x = 8,164.84 × 3,561.92
  4. Step 4: Simplify right side
    5,920.20x = 29,082,506.89
  5. Step 5: Solve for x
    x = 29,082,506.89/5,920.20
  6. Step 6: Final answer
    x = 4,912.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.