Home / 3,390.20-5,079.16-2,845.88

Finding the Fourth Proportional to 3,390.20, 5,079.16 and 2,845.88

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Solution

The fourth proportional to 3,390.20, 5,079.16 and 2,845.88 is: 4,263.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.20 : 5,079.16 = 2,845.88 : x
  2. Step 2: Convert to fraction form
    3,390.20/5,079.16 = 2,845.88/x
  3. Step 3: Cross multiply
    3,390.20x = 5,079.16 × 2,845.88
  4. Step 4: Simplify right side
    3,390.20x = 14,454,679.86
  5. Step 5: Solve for x
    x = 14,454,679.86/3,390.20
  6. Step 6: Final answer
    x = 4,263.67

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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.