Home / 3,136.11-4,327.82-1,809.81

Finding the Fourth Proportional to 3,136.11, 4,327.82 and 1,809.81

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Solution

The fourth proportional to 3,136.11, 4,327.82 and 1,809.81 is: 2,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.11 : 4,327.82 = 1,809.81 : x
  2. Step 2: Convert to fraction form
    3,136.11/4,327.82 = 1,809.81/x
  3. Step 3: Cross multiply
    3,136.11x = 4,327.82 × 1,809.81
  4. Step 4: Simplify right side
    3,136.11x = 7,832,531.91
  5. Step 5: Solve for x
    x = 7,832,531.91/3,136.11
  6. Step 6: Final answer
    x = 2,497.53

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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.