Home / 5,679.45-8,519.18-2,216.70

Finding the Fourth Proportional to 5,679.45, 8,519.18 and 2,216.70

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Solution

The fourth proportional to 5,679.45, 8,519.18 and 2,216.70 is: 3,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.45 : 8,519.18 = 2,216.70 : x
  2. Step 2: Convert to fraction form
    5,679.45/8,519.18 = 2,216.70/x
  3. Step 3: Cross multiply
    5,679.45x = 8,519.18 × 2,216.70
  4. Step 4: Simplify right side
    5,679.45x = 18,884,455.22
  5. Step 5: Solve for x
    x = 18,884,455.22/5,679.45
  6. Step 6: Final answer
    x = 3,325.05

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Similar ratio
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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.