Home / 5,310.79-7,967.14-2,189.05

Finding the Fourth Proportional to 5,310.79, 7,967.14 and 2,189.05

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Solution

The fourth proportional to 5,310.79, 7,967.14 and 2,189.05 is: 3,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.79 : 7,967.14 = 2,189.05 : x
  2. Step 2: Convert to fraction form
    5,310.79/7,967.14 = 2,189.05/x
  3. Step 3: Cross multiply
    5,310.79x = 7,967.14 × 2,189.05
  4. Step 4: Simplify right side
    5,310.79x = 17,440,456.87
  5. Step 5: Solve for x
    x = 17,440,456.87/5,310.79
  6. Step 6: Final answer
    x = 3,283.97

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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.