Home / 8,231.20-12,346.04-2,308.64

Finding the Fourth Proportional to 8,231.20, 12,346.04 and 2,308.64

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Solution

The fourth proportional to 8,231.20, 12,346.04 and 2,308.64 is: 3,462.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.20 : 12,346.04 = 2,308.64 : x
  2. Step 2: Convert to fraction form
    8,231.20/12,346.04 = 2,308.64/x
  3. Step 3: Cross multiply
    8,231.20x = 12,346.04 × 2,308.64
  4. Step 4: Simplify right side
    8,231.20x = 28,502,561.79
  5. Step 5: Solve for x
    x = 28,502,561.79/8,231.20
  6. Step 6: Final answer
    x = 3,462.75

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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.