Home / 7,717.82-11,576.68-1,874.39

Finding the Fourth Proportional to 7,717.82, 11,576.68 and 1,874.39

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Solution

The fourth proportional to 7,717.82, 11,576.68 and 1,874.39 is: 2,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.82 : 11,576.68 = 1,874.39 : x
  2. Step 2: Convert to fraction form
    7,717.82/11,576.68 = 1,874.39/x
  3. Step 3: Cross multiply
    7,717.82x = 11,576.68 × 1,874.39
  4. Step 4: Simplify right side
    7,717.82x = 21,699,150.66
  5. Step 5: Solve for x
    x = 21,699,150.66/7,717.82
  6. Step 6: Final answer
    x = 2,811.57

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1.5x scale

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.