Home / 3,932.40-5,428.37-2,608.05

Finding the Fourth Proportional to 3,932.40, 5,428.37 and 2,608.05

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Solution

The fourth proportional to 3,932.40, 5,428.37 and 2,608.05 is: 3,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.40 : 5,428.37 = 2,608.05 : x
  2. Step 2: Convert to fraction form
    3,932.40/5,428.37 = 2,608.05/x
  3. Step 3: Cross multiply
    3,932.40x = 5,428.37 × 2,608.05
  4. Step 4: Simplify right side
    3,932.40x = 14,157,466.90
  5. Step 5: Solve for x
    x = 14,157,466.90/3,932.40
  6. Step 6: Final answer
    x = 3,600.21

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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.