Home / 7,693.31-11,540.21-2,428.38

Finding the Fourth Proportional to 7,693.31, 11,540.21 and 2,428.38

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Solution

The fourth proportional to 7,693.31, 11,540.21 and 2,428.38 is: 3,642.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.31 : 11,540.21 = 2,428.38 : x
  2. Step 2: Convert to fraction form
    7,693.31/11,540.21 = 2,428.38/x
  3. Step 3: Cross multiply
    7,693.31x = 11,540.21 × 2,428.38
  4. Step 4: Simplify right side
    7,693.31x = 28,024,003.02
  5. Step 5: Solve for x
    x = 28,024,003.02/7,693.31
  6. Step 6: Final answer
    x = 3,642.64

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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.