Home / 1,968.09-2,716.13-1,182.12

Finding the Fourth Proportional to 1,968.09, 2,716.13 and 1,182.12

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Solution

The fourth proportional to 1,968.09, 2,716.13 and 1,182.12 is: 1,631.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.09 : 2,716.13 = 1,182.12 : x
  2. Step 2: Convert to fraction form
    1,968.09/2,716.13 = 1,182.12/x
  3. Step 3: Cross multiply
    1,968.09x = 2,716.13 × 1,182.12
  4. Step 4: Simplify right side
    1,968.09x = 3,210,785.69
  5. Step 5: Solve for x
    x = 3,210,785.69/1,968.09
  6. Step 6: Final answer
    x = 1,631.42

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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.