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Finding the Fourth Proportional to 10,801.91, 16,201.53 and 2,905.03

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Solution

The fourth proportional to 10,801.91, 16,201.53 and 2,905.03 is: 4,357.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,801.91 : 16,201.53 = 2,905.03 : x
  2. Step 2: Convert to fraction form
    10,801.91/16,201.53 = 2,905.03/x
  3. Step 3: Cross multiply
    10,801.91x = 16,201.53 × 2,905.03
  4. Step 4: Simplify right side
    10,801.91x = 47,065,930.70
  5. Step 5: Solve for x
    x = 47,065,930.70/10,801.91
  6. Step 6: Final answer
    x = 4,357.19

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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.