Home / 1,845.14-2,761.52-1,257.71

Finding the Fourth Proportional to 1,845.14, 2,761.52 and 1,257.71

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Solution

The fourth proportional to 1,845.14, 2,761.52 and 1,257.71 is: 1,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.14 : 2,761.52 = 1,257.71 : x
  2. Step 2: Convert to fraction form
    1,845.14/2,761.52 = 1,257.71/x
  3. Step 3: Cross multiply
    1,845.14x = 2,761.52 × 1,257.71
  4. Step 4: Simplify right side
    1,845.14x = 3,473,171.22
  5. Step 5: Solve for x
    x = 3,473,171.22/1,845.14
  6. Step 6: Final answer
    x = 1,882.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.