Home / 3,790.49-5,230.75-2,111.82

Finding the Fourth Proportional to 3,790.49, 5,230.75 and 2,111.82

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Solution

The fourth proportional to 3,790.49, 5,230.75 and 2,111.82 is: 2,914.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.49 : 5,230.75 = 2,111.82 : x
  2. Step 2: Convert to fraction form
    3,790.49/5,230.75 = 2,111.82/x
  3. Step 3: Cross multiply
    3,790.49x = 5,230.75 × 2,111.82
  4. Step 4: Simplify right side
    3,790.49x = 11,046,397.19
  5. Step 5: Solve for x
    x = 11,046,397.19/3,790.49
  6. Step 6: Final answer
    x = 2,914.24

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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.