Home / 2,112.16-2,914.76-1,180.66

Finding the Fourth Proportional to 2,112.16, 2,914.76 and 1,180.66

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Solution

The fourth proportional to 2,112.16, 2,914.76 and 1,180.66 is: 1,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.16 : 2,914.76 = 1,180.66 : x
  2. Step 2: Convert to fraction form
    2,112.16/2,914.76 = 1,180.66/x
  3. Step 3: Cross multiply
    2,112.16x = 2,914.76 × 1,180.66
  4. Step 4: Simplify right side
    2,112.16x = 3,441,340.54
  5. Step 5: Solve for x
    x = 3,441,340.54/2,112.16
  6. Step 6: Final answer
    x = 1,629.30

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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.