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Finding the Fourth Proportional to 2,873.18, 3,965.82 and 1,693.82

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Solution

The fourth proportional to 2,873.18, 3,965.82 and 1,693.82 is: 2,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.18 : 3,965.82 = 1,693.82 : x
  2. Step 2: Convert to fraction form
    2,873.18/3,965.82 = 1,693.82/x
  3. Step 3: Cross multiply
    2,873.18x = 3,965.82 × 1,693.82
  4. Step 4: Simplify right side
    2,873.18x = 6,717,385.23
  5. Step 5: Solve for x
    x = 6,717,385.23/2,873.18
  6. Step 6: Final answer
    x = 2,337.96

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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.