Home / 7,216.20-10,824.98-2,219.72

Finding the Fourth Proportional to 7,216.20, 10,824.98 and 2,219.72

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Solution

The fourth proportional to 7,216.20, 10,824.98 and 2,219.72 is: 3,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.20 : 10,824.98 = 2,219.72 : x
  2. Step 2: Convert to fraction form
    7,216.20/10,824.98 = 2,219.72/x
  3. Step 3: Cross multiply
    7,216.20x = 10,824.98 × 2,219.72
  4. Step 4: Simplify right side
    7,216.20x = 24,028,359.38
  5. Step 5: Solve for x
    x = 24,028,359.38/7,216.20
  6. Step 6: Final answer
    x = 3,329.78

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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.