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Finding the Fourth Proportional to 2,850, 3,932.49 and 1,730.71

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Solution

The fourth proportional to 2,850, 3,932.49 and 1,730.71 is: 2,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850 : 3,932.49 = 1,730.71 : x
  2. Step 2: Convert to fraction form
    2,850/3,932.49 = 1,730.71/x
  3. Step 3: Cross multiply
    2,850x = 3,932.49 × 1,730.71
  4. Step 4: Simplify right side
    2,850x = 6,805,999.77
  5. Step 5: Solve for x
    x = 6,805,999.77/2,850
  6. Step 6: Final answer
    x = 2,388.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.