Home / 2,186.33-3,010.57-1,869.21

Finding the Fourth Proportional to 2,186.33, 3,010.57 and 1,869.21

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Solution

The fourth proportional to 2,186.33, 3,010.57 and 1,869.21 is: 2,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.33 : 3,010.57 = 1,869.21 : x
  2. Step 2: Convert to fraction form
    2,186.33/3,010.57 = 1,869.21/x
  3. Step 3: Cross multiply
    2,186.33x = 3,010.57 × 1,869.21
  4. Step 4: Simplify right side
    2,186.33x = 5,627,382.88
  5. Step 5: Solve for x
    x = 5,627,382.88/2,186.33
  6. Step 6: Final answer
    x = 2,573.90

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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.