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Finding the Fourth Proportional to 2,967.86, 4,095.81 and 1,789.11

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Solution

The fourth proportional to 2,967.86, 4,095.81 and 1,789.11 is: 2,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,967.86 : 4,095.81 = 1,789.11 : x
  2. Step 2: Convert to fraction form
    2,967.86/4,095.81 = 1,789.11/x
  3. Step 3: Cross multiply
    2,967.86x = 4,095.81 × 1,789.11
  4. Step 4: Simplify right side
    2,967.86x = 7,327,854.63
  5. Step 5: Solve for x
    x = 7,327,854.63/2,967.86
  6. Step 6: Final answer
    x = 2,469.07

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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.