Home / 2,180.67-3,001.77-1,896.90

Finding the Fourth Proportional to 2,180.67, 3,001.77 and 1,896.90

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Solution

The fourth proportional to 2,180.67, 3,001.77 and 1,896.90 is: 2,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.67 : 3,001.77 = 1,896.90 : x
  2. Step 2: Convert to fraction form
    2,180.67/3,001.77 = 1,896.90/x
  3. Step 3: Cross multiply
    2,180.67x = 3,001.77 × 1,896.90
  4. Step 4: Simplify right side
    2,180.67x = 5,694,057.51
  5. Step 5: Solve for x
    x = 5,694,057.51/2,180.67
  6. Step 6: Final answer
    x = 2,611.15

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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.