Home / 2,091.11-2,885.81-1,251.95

Finding the Fourth Proportional to 2,091.11, 2,885.81 and 1,251.95

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Solution

The fourth proportional to 2,091.11, 2,885.81 and 1,251.95 is: 1,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.11 : 2,885.81 = 1,251.95 : x
  2. Step 2: Convert to fraction form
    2,091.11/2,885.81 = 1,251.95/x
  3. Step 3: Cross multiply
    2,091.11x = 2,885.81 × 1,251.95
  4. Step 4: Simplify right side
    2,091.11x = 3,612,869.14
  5. Step 5: Solve for x
    x = 3,612,869.14/2,091.11
  6. Step 6: Final answer
    x = 1,727.73

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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.