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Finding the Fourth Proportional to 2,038.82, 3,059.24 and 807.11

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Solution

The fourth proportional to 2,038.82, 3,059.24 and 807.11 is: 1,211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.82 : 3,059.24 = 807.11 : x
  2. Step 2: Convert to fraction form
    2,038.82/3,059.24 = 807.11/x
  3. Step 3: Cross multiply
    2,038.82x = 3,059.24 × 807.11
  4. Step 4: Simplify right side
    2,038.82x = 2,469,135.34
  5. Step 5: Solve for x
    x = 2,469,135.34/2,038.82
  6. Step 6: Final answer
    x = 1,211.06

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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.