Home / 7,712.22-11,566.31-2,780.94

Finding the Fourth Proportional to 7,712.22, 11,566.31 and 2,780.94

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Solution

The fourth proportional to 7,712.22, 11,566.31 and 2,780.94 is: 4,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.22 : 11,566.31 = 2,780.94 : x
  2. Step 2: Convert to fraction form
    7,712.22/11,566.31 = 2,780.94/x
  3. Step 3: Cross multiply
    7,712.22x = 11,566.31 × 2,780.94
  4. Step 4: Simplify right side
    7,712.22x = 32,165,200.23
  5. Step 5: Solve for x
    x = 32,165,200.23/7,712.22
  6. Step 6: Final answer
    x = 4,170.68

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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.