Home / 2,180.43-3,009.43-1,236.24

Finding the Fourth Proportional to 2,180.43, 3,009.43 and 1,236.24

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Solution

The fourth proportional to 2,180.43, 3,009.43 and 1,236.24 is: 1,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.43 : 3,009.43 = 1,236.24 : x
  2. Step 2: Convert to fraction form
    2,180.43/3,009.43 = 1,236.24/x
  3. Step 3: Cross multiply
    2,180.43x = 3,009.43 × 1,236.24
  4. Step 4: Simplify right side
    2,180.43x = 3,720,390.57
  5. Step 5: Solve for x
    x = 3,720,390.57/2,180.43
  6. Step 6: Final answer
    x = 1,706.26

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Half scale
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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.