Home / 7,132.20-9,842.25-3,945.41

Finding the Fourth Proportional to 7,132.20, 9,842.25 and 3,945.41

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Solution

The fourth proportional to 7,132.20, 9,842.25 and 3,945.41 is: 5,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.20 : 9,842.25 = 3,945.41 : x
  2. Step 2: Convert to fraction form
    7,132.20/9,842.25 = 3,945.41/x
  3. Step 3: Cross multiply
    7,132.20x = 9,842.25 × 3,945.41
  4. Step 4: Simplify right side
    7,132.20x = 38,831,736.18
  5. Step 5: Solve for x
    x = 38,831,736.18/7,132.20
  6. Step 6: Final answer
    x = 5,444.57

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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.