Home / 2,084.82-3,126.87-786.18

Finding the Fourth Proportional to 2,084.82, 3,126.87 and 786.18

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Solution

The fourth proportional to 2,084.82, 3,126.87 and 786.18 is: 1,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.82 : 3,126.87 = 786.18 : x
  2. Step 2: Convert to fraction form
    2,084.82/3,126.87 = 786.18/x
  3. Step 3: Cross multiply
    2,084.82x = 3,126.87 × 786.18
  4. Step 4: Simplify right side
    2,084.82x = 2,458,282.66
  5. Step 5: Solve for x
    x = 2,458,282.66/2,084.82
  6. Step 6: Final answer
    x = 1,179.13

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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.