Home / 3,387.48-5,081.22-1,438.41

Finding the Fourth Proportional to 3,387.48, 5,081.22 and 1,438.41

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Solution

The fourth proportional to 3,387.48, 5,081.22 and 1,438.41 is: 2,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.48 : 5,081.22 = 1,438.41 : x
  2. Step 2: Convert to fraction form
    3,387.48/5,081.22 = 1,438.41/x
  3. Step 3: Cross multiply
    3,387.48x = 5,081.22 × 1,438.41
  4. Step 4: Simplify right side
    3,387.48x = 7,308,896.71
  5. Step 5: Solve for x
    x = 7,308,896.71/3,387.48
  6. Step 6: Final answer
    x = 2,157.62

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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.