Home / 7,371.40-11,062.62-3,478.54

Finding the Fourth Proportional to 7,371.40, 11,062.62 and 3,478.54

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Solution

The fourth proportional to 7,371.40, 11,062.62 and 3,478.54 is: 5,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.40 : 11,062.62 = 3,478.54 : x
  2. Step 2: Convert to fraction form
    7,371.40/11,062.62 = 3,478.54/x
  3. Step 3: Cross multiply
    7,371.40x = 11,062.62 × 3,478.54
  4. Step 4: Simplify right side
    7,371.40x = 38,481,766.17
  5. Step 5: Solve for x
    x = 38,481,766.17/7,371.40
  6. Step 6: Final answer
    x = 5,220.41

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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.