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Finding the Fourth Proportional to 5,370.81, 8,059.05 and 2,905.17

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Solution

The fourth proportional to 5,370.81, 8,059.05 and 2,905.17 is: 4,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.81 : 8,059.05 = 2,905.17 : x
  2. Step 2: Convert to fraction form
    5,370.81/8,059.05 = 2,905.17/x
  3. Step 3: Cross multiply
    5,370.81x = 8,059.05 × 2,905.17
  4. Step 4: Simplify right side
    5,370.81x = 23,412,910.29
  5. Step 5: Solve for x
    x = 23,412,910.29/5,370.81
  6. Step 6: Final answer
    x = 4,359.29

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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.