Home / 7,841.36-11,761.92-3,161.25

Finding the Fourth Proportional to 7,841.36, 11,761.92 and 3,161.25

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Solution

The fourth proportional to 7,841.36, 11,761.92 and 3,161.25 is: 4,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841.36 : 11,761.92 = 3,161.25 : x
  2. Step 2: Convert to fraction form
    7,841.36/11,761.92 = 3,161.25/x
  3. Step 3: Cross multiply
    7,841.36x = 11,761.92 × 3,161.25
  4. Step 4: Simplify right side
    7,841.36x = 37,182,369.60
  5. Step 5: Solve for x
    x = 37,182,369.60/7,841.36
  6. Step 6: Final answer
    x = 4,741.83

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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.