Home / 3,874.31-5,346.65-2,195.66

Finding the Fourth Proportional to 3,874.31, 5,346.65 and 2,195.66

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Solution

The fourth proportional to 3,874.31, 5,346.65 and 2,195.66 is: 3,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.31 : 5,346.65 = 2,195.66 : x
  2. Step 2: Convert to fraction form
    3,874.31/5,346.65 = 2,195.66/x
  3. Step 3: Cross multiply
    3,874.31x = 5,346.65 × 2,195.66
  4. Step 4: Simplify right side
    3,874.31x = 11,739,419.72
  5. Step 5: Solve for x
    x = 11,739,419.72/3,874.31
  6. Step 6: Final answer
    x = 3,030.07

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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.