Home / 5,106.20-7,659.30-4,286.09

Finding the Fourth Proportional to 5,106.20, 7,659.30 and 4,286.09

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Solution

The fourth proportional to 5,106.20, 7,659.30 and 4,286.09 is: 6,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.20 : 7,659.30 = 4,286.09 : x
  2. Step 2: Convert to fraction form
    5,106.20/7,659.30 = 4,286.09/x
  3. Step 3: Cross multiply
    5,106.20x = 7,659.30 × 4,286.09
  4. Step 4: Simplify right side
    5,106.20x = 32,828,449.14
  5. Step 5: Solve for x
    x = 32,828,449.14/5,106.20
  6. Step 6: Final answer
    x = 6,429.14

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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.