Home / 6,765.80-9,336.60-3,781.62

Finding the Fourth Proportional to 6,765.80, 9,336.60 and 3,781.62

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Solution

The fourth proportional to 6,765.80, 9,336.60 and 3,781.62 is: 5,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.80 : 9,336.60 = 3,781.62 : x
  2. Step 2: Convert to fraction form
    6,765.80/9,336.60 = 3,781.62/x
  3. Step 3: Cross multiply
    6,765.80x = 9,336.60 × 3,781.62
  4. Step 4: Simplify right side
    6,765.80x = 35,307,473.29
  5. Step 5: Solve for x
    x = 35,307,473.29/6,765.80
  6. Step 6: Final answer
    x = 5,218.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.