Home / 2,832.21-4,248.92-1,187.81

Finding the Fourth Proportional to 2,832.21, 4,248.92 and 1,187.81

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Solution

The fourth proportional to 2,832.21, 4,248.92 and 1,187.81 is: 1,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,832.21 : 4,248.92 = 1,187.81 : x
  2. Step 2: Convert to fraction form
    2,832.21/4,248.92 = 1,187.81/x
  3. Step 3: Cross multiply
    2,832.21x = 4,248.92 × 1,187.81
  4. Step 4: Simplify right side
    2,832.21x = 5,046,882.48
  5. Step 5: Solve for x
    x = 5,046,882.48/2,832.21
  6. Step 6: Final answer
    x = 1,781.96

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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.