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Finding the Fourth Proportional to 3,802.92, 5,705.10 and 1,205.34

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Solution

The fourth proportional to 3,802.92, 5,705.10 and 1,205.34 is: 1,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.92 : 5,705.10 = 1,205.34 : x
  2. Step 2: Convert to fraction form
    3,802.92/5,705.10 = 1,205.34/x
  3. Step 3: Cross multiply
    3,802.92x = 5,705.10 × 1,205.34
  4. Step 4: Simplify right side
    3,802.92x = 6,876,585.23
  5. Step 5: Solve for x
    x = 6,876,585.23/3,802.92
  6. Step 6: Final answer
    x = 1,808.24

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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.