Home / 3,869.31-5,790.11-3,351.09

Finding the Fourth Proportional to 3,869.31, 5,790.11 and 3,351.09

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Solution

The fourth proportional to 3,869.31, 5,790.11 and 3,351.09 is: 5,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.31 : 5,790.11 = 3,351.09 : x
  2. Step 2: Convert to fraction form
    3,869.31/5,790.11 = 3,351.09/x
  3. Step 3: Cross multiply
    3,869.31x = 5,790.11 × 3,351.09
  4. Step 4: Simplify right side
    3,869.31x = 19,403,162.96
  5. Step 5: Solve for x
    x = 19,403,162.96/3,869.31
  6. Step 6: Final answer
    x = 5,014.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.