Home / 3,821.61-5,722.70-3,500.85

Finding the Fourth Proportional to 3,821.61, 5,722.70 and 3,500.85

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Solution

The fourth proportional to 3,821.61, 5,722.70 and 3,500.85 is: 5,242.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.61 : 5,722.70 = 3,500.85 : x
  2. Step 2: Convert to fraction form
    3,821.61/5,722.70 = 3,500.85/x
  3. Step 3: Cross multiply
    3,821.61x = 5,722.70 × 3,500.85
  4. Step 4: Simplify right side
    3,821.61x = 20,034,296.79
  5. Step 5: Solve for x
    x = 20,034,296.79/3,821.61
  6. Step 6: Final answer
    x = 5,242.37

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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.