Home / 3,136.09-4,327.08-1,809.70

Finding the Fourth Proportional to 3,136.09, 4,327.08 and 1,809.70

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Solution

The fourth proportional to 3,136.09, 4,327.08 and 1,809.70 is: 2,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.09 : 4,327.08 = 1,809.70 : x
  2. Step 2: Convert to fraction form
    3,136.09/4,327.08 = 1,809.70/x
  3. Step 3: Cross multiply
    3,136.09x = 4,327.08 × 1,809.70
  4. Step 4: Simplify right side
    3,136.09x = 7,830,716.68
  5. Step 5: Solve for x
    x = 7,830,716.68/3,136.09
  6. Step 6: Final answer
    x = 2,496.97

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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.