Home / 3,620.92-5,423.82-2,315.76

Finding the Fourth Proportional to 3,620.92, 5,423.82 and 2,315.76

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Solution

The fourth proportional to 3,620.92, 5,423.82 and 2,315.76 is: 3,468.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.92 : 5,423.82 = 2,315.76 : x
  2. Step 2: Convert to fraction form
    3,620.92/5,423.82 = 2,315.76/x
  3. Step 3: Cross multiply
    3,620.92x = 5,423.82 × 2,315.76
  4. Step 4: Simplify right side
    3,620.92x = 12,560,265.40
  5. Step 5: Solve for x
    x = 12,560,265.40/3,620.92
  6. Step 6: Final answer
    x = 3,468.81

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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.