Home / 1,914.05-2,640.06-1,251.68

Finding the Fourth Proportional to 1,914.05, 2,640.06 and 1,251.68

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Solution

The fourth proportional to 1,914.05, 2,640.06 and 1,251.68 is: 1,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.05 : 2,640.06 = 1,251.68 : x
  2. Step 2: Convert to fraction form
    1,914.05/2,640.06 = 1,251.68/x
  3. Step 3: Cross multiply
    1,914.05x = 2,640.06 × 1,251.68
  4. Step 4: Simplify right side
    1,914.05x = 3,304,497.10
  5. Step 5: Solve for x
    x = 3,304,497.10/1,914.05
  6. Step 6: Final answer
    x = 1,726.44

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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.