Home / 2,156.73-3,232.79-1,115.68

Finding the Fourth Proportional to 2,156.73, 3,232.79 and 1,115.68

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Solution

The fourth proportional to 2,156.73, 3,232.79 and 1,115.68 is: 1,672.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.73 : 3,232.79 = 1,115.68 : x
  2. Step 2: Convert to fraction form
    2,156.73/3,232.79 = 1,115.68/x
  3. Step 3: Cross multiply
    2,156.73x = 3,232.79 × 1,115.68
  4. Step 4: Simplify right side
    2,156.73x = 3,606,763.05
  5. Step 5: Solve for x
    x = 3,606,763.05/2,156.73
  6. Step 6: Final answer
    x = 1,672.33

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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.