Home / 1,635.76-2,257.68-1,111.96

Finding the Fourth Proportional to 1,635.76, 2,257.68 and 1,111.96

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Solution

The fourth proportional to 1,635.76, 2,257.68 and 1,111.96 is: 1,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.76 : 2,257.68 = 1,111.96 : x
  2. Step 2: Convert to fraction form
    1,635.76/2,257.68 = 1,111.96/x
  3. Step 3: Cross multiply
    1,635.76x = 2,257.68 × 1,111.96
  4. Step 4: Simplify right side
    1,635.76x = 2,510,449.85
  5. Step 5: Solve for x
    x = 2,510,449.85/1,635.76
  6. Step 6: Final answer
    x = 1,534.73

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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.