Home / 1,284.12-1,936.17-1,176.12

Finding the Fourth Proportional to 1,284.12, 1,936.17 and 1,176.12

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Solution

The fourth proportional to 1,284.12, 1,936.17 and 1,176.12 is: 1,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284.12 : 1,936.17 = 1,176.12 : x
  2. Step 2: Convert to fraction form
    1,284.12/1,936.17 = 1,176.12/x
  3. Step 3: Cross multiply
    1,284.12x = 1,936.17 × 1,176.12
  4. Step 4: Simplify right side
    1,284.12x = 2,277,168.26
  5. Step 5: Solve for x
    x = 2,277,168.26/1,284.12
  6. Step 6: Final answer
    x = 1,773.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.