Home / 6,665.82-9,998.75-2,770.21

Finding the Fourth Proportional to 6,665.82, 9,998.75 and 2,770.21

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Solution

The fourth proportional to 6,665.82, 9,998.75 and 2,770.21 is: 4,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.82 : 9,998.75 = 2,770.21 : x
  2. Step 2: Convert to fraction form
    6,665.82/9,998.75 = 2,770.21/x
  3. Step 3: Cross multiply
    6,665.82x = 9,998.75 × 2,770.21
  4. Step 4: Simplify right side
    6,665.82x = 27,698,637.24
  5. Step 5: Solve for x
    x = 27,698,637.24/6,665.82
  6. Step 6: Final answer
    x = 4,155.32

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Similar ratio
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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.