Home / 5,428.74-8,144.19-2,308.72

Finding the Fourth Proportional to 5,428.74, 8,144.19 and 2,308.72

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Solution

The fourth proportional to 5,428.74, 8,144.19 and 2,308.72 is: 3,463.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.74 : 8,144.19 = 2,308.72 : x
  2. Step 2: Convert to fraction form
    5,428.74/8,144.19 = 2,308.72/x
  3. Step 3: Cross multiply
    5,428.74x = 8,144.19 × 2,308.72
  4. Step 4: Simplify right side
    5,428.74x = 18,802,654.34
  5. Step 5: Solve for x
    x = 18,802,654.34/5,428.74
  6. Step 6: Final answer
    x = 3,463.54

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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.