Home / 7,720.39-11,582.19-3,103.39

Finding the Fourth Proportional to 7,720.39, 11,582.19 and 3,103.39

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Solution

The fourth proportional to 7,720.39, 11,582.19 and 3,103.39 is: 4,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.39 : 11,582.19 = 3,103.39 : x
  2. Step 2: Convert to fraction form
    7,720.39/11,582.19 = 3,103.39/x
  3. Step 3: Cross multiply
    7,720.39x = 11,582.19 × 3,103.39
  4. Step 4: Simplify right side
    7,720.39x = 35,944,052.62
  5. Step 5: Solve for x
    x = 35,944,052.62/7,720.39
  6. Step 6: Final answer
    x = 4,655.73

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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.