Home / 2,790.09-3,850.35-1,531.22

Finding the Fourth Proportional to 2,790.09, 3,850.35 and 1,531.22

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Solution

The fourth proportional to 2,790.09, 3,850.35 and 1,531.22 is: 2,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.09 : 3,850.35 = 1,531.22 : x
  2. Step 2: Convert to fraction form
    2,790.09/3,850.35 = 1,531.22/x
  3. Step 3: Cross multiply
    2,790.09x = 3,850.35 × 1,531.22
  4. Step 4: Simplify right side
    2,790.09x = 5,895,753.73
  5. Step 5: Solve for x
    x = 5,895,753.73/2,790.09
  6. Step 6: Final answer
    x = 2,113.11

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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.