Home / 1,635.96-2,257.05-927.72

Finding the Fourth Proportional to 1,635.96, 2,257.05 and 927.72

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Solution

The fourth proportional to 1,635.96, 2,257.05 and 927.72 is: 1,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.96 : 2,257.05 = 927.72 : x
  2. Step 2: Convert to fraction form
    1,635.96/2,257.05 = 927.72/x
  3. Step 3: Cross multiply
    1,635.96x = 2,257.05 × 927.72
  4. Step 4: Simplify right side
    1,635.96x = 2,093,910.43
  5. Step 5: Solve for x
    x = 2,093,910.43/1,635.96
  6. Step 6: Final answer
    x = 1,279.93

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Double scale
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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.