Home / 3,781.09-5,216.70-2,288.53

Finding the Fourth Proportional to 3,781.09, 5,216.70 and 2,288.53

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Solution

The fourth proportional to 3,781.09, 5,216.70 and 2,288.53 is: 3,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.09 : 5,216.70 = 2,288.53 : x
  2. Step 2: Convert to fraction form
    3,781.09/5,216.70 = 2,288.53/x
  3. Step 3: Cross multiply
    3,781.09x = 5,216.70 × 2,288.53
  4. Step 4: Simplify right side
    3,781.09x = 11,938,574.45
  5. Step 5: Solve for x
    x = 11,938,574.45/3,781.09
  6. Step 6: Final answer
    x = 3,157.44

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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.