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Finding the Fourth Proportional to 3,201.19, 4,802.05 and 892.69

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Solution

The fourth proportional to 3,201.19, 4,802.05 and 892.69 is: 1,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.19 : 4,802.05 = 892.69 : x
  2. Step 2: Convert to fraction form
    3,201.19/4,802.05 = 892.69/x
  3. Step 3: Cross multiply
    3,201.19x = 4,802.05 × 892.69
  4. Step 4: Simplify right side
    3,201.19x = 4,286,731.13
  5. Step 5: Solve for x
    x = 4,286,731.13/3,201.19
  6. Step 6: Final answer
    x = 1,339.11

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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.